Dell PRECISION 610 User Manual

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____________________

Inform ation in this docum ent is subject to change w ithout notice.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.

Trademarks used in this text: Dell and the DELL logo are registered trademarks and Dell Precision is a trademark of Dell Computer Corporation; Intel

and Pentium are registered trademarks and Xeon and MMX are trademarks of Intel Corporation; Microsoft, Windows, Windows NT, and MS-DOS are

registered trademarks of Microsoft Corporation; IBM is a registered trademark of International Business Machines Corporation; 3Com is a registered

trademark of 3Com Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell

Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

June 1998 P/N 9156C

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System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -2

Dua l -P rocessor Capab i li t y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -4

A d vanced Expans i o n Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -4

Hard-Di s k D rive Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Enhanced Dua l -I n terface EIDE Subsystem . . . . . . . . . . . . . . . . . . . . . . 1 -6

SCSI Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -7

A u d i o Controll e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -7

Vi d eo Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -7

NIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -8

T h e r m al Protect i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -8

Computer Serv i c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -9

System Power Supp l y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -9

P i n A s s i g nments for the DC Power Connectors . . . . . . . . . . . . . . . 1 -9

DC Power D i s tr i b ut i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 1

System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 3

Ma i n M emory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 3

System Board Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 4

System Board Jumper Sett i n gs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 5

I n terrupt Request A s s i g nments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 6

Dir e ct Memo r y Acc e ss C hannel A s s i g nments . . . . . . . . . . . . . . . . . . . . . 1 -1 7

T e chn i c al Spec i fication s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 8

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I n i t i a l User Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -1

Ext e r nal V i s ual I n spect i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -2

Observ i n g the Boot Rout i n e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -3

I n ternal V i s ual I n spect i o n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -5

Eli m i n at i n g Resource Conf l i c ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -6

Runn i n g the De l l Di a gnost i c s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -7

G e tt i n g He l p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -7

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POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -1

System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -4

Fatal System Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -4

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R e commended T o o l s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1

Precaut i o nary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2

Computer Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -3

Front B e z e l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -5

Power and Reset Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -6

Front-Panel Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -7

Card Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -9

Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 0

Driv e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 1

Ext e r na l ly A c cess i b l e Drive A s semb l i e s . . . . . . . . . . . . . . . . . . . . . . . 4 -1 2

3.5 -I n ch D i s k e tte Dr i ve A s semb l y . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 2

5.25 -I n ch Dr i ve A s semb l y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 4

I n ternal Dr i ve A s semb l i e s i n t he Hard -Di s k D rive Brack e t. . . . . . . . . . 4 -1 6

Hard-Di s k D rive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

System Power Supp l y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 8

M i c roprocessor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 9

System Board Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 0

Expans i o n Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 1

DI M Ms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 3

M i c roprocessor S l o t 2 SEC Cartridge/Heat Sink Assemb l y . . . . . . . . . 4 -2 4

T e r m i n ator Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 6

System Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 7

System Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 8

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System Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A -2

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Figure 1-1.

Figure 1-2.

Figure 1-3.

Computer Or i e ntat i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -3

Front -P anel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -3

Internal View and Back Panel of the

M i n i T o wer C o m puter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -4

Expans i o n -Card Conn e ctors . . . . . . . . . . . . . . . . . . . . . . . . . 1 -5

Drive Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

DC Power Connector P1 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 0

DC Power Connectors P3, P4, P5, and P6 . . . . . . . . . . . . . 1 -1 0

DC Power Connector P2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 1

DC Power Cab l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 1

Figure 1-10. Power D i s tr i b ut i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 2

Figure 1-11. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 3

Figure 1-12. Location of System Board Jumpers . . . . . . . . . . . . . . . . . . 1 -1 4

Computer Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -3

Front B e z e l R e mo v al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -5

Power and Reset Button Removal . . . . . . . . . . . . . . . . . . . . 4 -6

5.25 -I n ch Front -P anel I n sert Removal . . . . . . . . . . . . . . . . . . 4 -7

Card Guide R e moval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -8

Control Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -9

Speaker Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 0

Drive Hard w are . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 1

3.5 -I n ch D i s k e tte Dr i ve A s semb l y R e mo v al . . . . . . . . . . . . 4 -1 2

Figure 4-10. 3.5-Inch Di s k e tte Dr i ve R e mo v al. . . . . . . . . . . . . . . . . . . . . 4 -1 3

Figure 4-11. 5.25-Inch Drive A s semb l y R e mo v al . . . . . . . . . . . . . . . . . . 4 -1 4

Figure 4-12. 5.25-Inch Drive R e moval . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 5

Figure 4-13. R e mo v ing the Hard-Di s k D rive Brack e t . . . . . . . . . . . . . . . 4 -1 6

Figure 4-14. Hard-Di s k D rive R e moval . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -1 7

Figure 4-15. System Power -S upp l y R e mo v al . . . . . . . . . . . . . . . . . . . . . 4 -1 8

Figure 4-16. Microprocessor Fan Removal . . . . . . . . . . . . . . . . . . . . . . . 4 -1 9

Figure 4-17. System Board Components . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 0

Figure 4-18. R e mov i n g an Expans i o n Card . . . . . . . . . . . . . . . . . . . . . . . 4 -2 1

Figure 4-19. DIMM R e moval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 3

Figure 4-20. DIMM In s ta l l a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 3

Figure 4-21. Microprocessor Slot 2 SEC Cartridge/

H e at S i n k Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 4

Figure 4-22. T e r m i n ator Card Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 6

Figure 4-23. System Battery Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 7

Figure 4-24. System Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 -2 8

Figure A-1. Sy s tem Setup Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A -2

vii

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Table 1-1.

T a b l e 1 -2 .

T a b l e 1 -3 .

T a b l e 1 -4 .

T a b l e 1 -5 .

T a b l e 3 -1 .

T a b l e 3 -2 .

T a b l e A-1 .

DC Voltage Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

System -Board J umper Sett i n gs . . . . . . . . . . . . . . . . . . . . . 1 -1 5

I n terrupt Request A s s i g nments . . . . . . . . . . . . . . . . . . . . . 1 -1 6

DREQ Line A s s i g nments . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -1 7

T e chn i c al Spec i fications . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -2

System Error Messages

System Setup Opt i o ns

viii

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A prerequisite for using this manual to service Dell computer systems is a basic

knowledge of IBM -compatible PCs and prior training in IBM-compatible PC

troubleshooting techniques. In addition to information provided in this manual

and the User’s Guide that came with the system, Dell provides the Diagnostics

and Troubleshooting Guide for troubleshooting procedures and instructions on

using the Dell diagnostics to test the computer system.

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Throughout this manual, there may be blocks of text printed in bold type or in

italic type. These blocks are warnings, cautions, and notes, and they are used

as follows:

NOTE: A NOTE provides helpful information about using the computer system.

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™

Dell Precision 610 systems are high-speed, upgradable workstations

™

designed around Intel Pentium II Xeon microprocessors with MMX

technology. These Dell systems support the high-performance Peripheral

Component Interconnect (PCI) bus and the accelerated graphics port (AGP)

bus. Each system also has an Industry-Standard Architecture (ISA) design with

one ISA slot that allows you to configure the computer system to your initial

requirements and then upgrade it as necessary.

The Pentium II Xeon microprocessor contains a built-in clock multiplier circuit,

which increases the microprocessor’s internal operating frequency to a multi-

ple of the system clock frequency. The microprocessors for Dell Precision 610

mini tower systems operate at a frequency of 400 MHz, derived from a system

clock frequency of 100 MHz.

System Overview

1-1

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The system includes the following features:

‡ Dual-processor capability

‡ Advanced combination PCI expansion and ISA subsystem

‡ Plug and Play capability

‡ Enhanced dual-interface enhanced integrated drive electronics (EIDE)

subsystem

‡ SCSI support using two integrated SCSI channels

— The primary (Adaptec AIC-7890) channel provides Ultra2/Wide low-

voltage differential (LVD) (80-MB/sec) support for high-performance

SCSI hard-disk drives and an optional redundant arrays of independent

disks (RAID) subsystem.

— The secondary (Adaptec AIC-7880) channel provides internal Ultra/

Narrow and external Ultra/Wide (40-MB/sec) support for SCSI CD-ROM

and tape drives, optical drives, scanners, and so forth.

‡ 16-bit integrated 3D audio controller

‡ 2X AGP or PCI graphics adapter card with one AGP expansion slot

‡ Integrated 10/100-Mbps 3Com PCI 3C905b-TX Ethernet network inter-

face controller (NIC) with Wakeup On LAN support

‡ Integrated USB controller

‡ Thermal sensors to shut down the system if it overheats

‡ Main system memory consisting of 64 MB to 512 MB of unbuffered

SDRAM DIMMs, or up to 2048 MB of registered SDRAM DIMMs

‡ Secondary cache of 512 KB of SRAM in the Slot 2 single-edge contact

(Slot 2 SEC) cartridge providing ECC capability

‡ Self-Monitoring Analysis and Reporting Technology (SMART)-compliant

EIDE hard-disk drives and SMART support in the system BIOS, which

warns you at system start-up if an EIDE hard-disk drive has become

unreliable

For a complete list of system features, see “Technical Specifications,” found

later in this chapter.

1-2

Dell Precision 610 Mini Tower Systems Service Manual

When following the procedures in this manual, assume that the location or

direction relative to the computer is as shown in Figure 1-1.

top

back

front

bottom

Mini Tow er Com puter

Figure 1-2 shows the location of some of the key front-panel features.

diskette-drive

access indicator

power button

reset button

hard-disk drive

access indicator

power indicator

computer cover

release button

Mini Tower Com puter

System Overview

1-3

Figure 1-3 points out many of the system’s internal components and back-

panel features.

power supply

AC power receptacle

security cable slot

external

drive bays

parallel port connector

SCSI port connector

internal

drive bays

serial port 1 connector

serial port 2 connector

keyboard connector

mouse connector

microphone jack

line-out jack

line-in jack

USB connectors

NIC connector

video connector

padlock ring

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With the installation of a second processor Slot 2 SEC cartridge in the second-

ary Slot 2 SEC cartridge connector on the system board, the computer

becomes a dual-processing system. The second processor must be the same

type and frequency as the first processor. To take advantage of two proces-

sors, dual-processing systems must have multiprocessing operating systems,

such as the Microsoft Windows NT 4.0 operating system.

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The Dell Precision 610 mini tower systems offer advanced expansion sub-

systems that can support a mixture of traditional ISA expansion cards (called

legacy cards), Plug and Play ISA expansion cards, PCI expansion cards, and a

2X AGP card. The operating system or the ISA Configuration Utility (ICU),

included with the system, provides a means of avoiding resource conflicts that

might arise from such an arrangement.

1-4

Dell Precision 610 Mini Tower Systems Service Manual

After all legacy cards have been configured by the operating system or with

the ICU, the computer automatically assigns any required memory space, IRQ

lines, and DMA channels to any installed Plug and Play ISA expansion cards

and PCI expansion cards the next time the computer is rebooted. Chapter 4,

“Using the ISA Configuration Utility,” in the Dell Precision WorkStation 610 Mini

Tower Systems User’s Guide describes the ICU and provides instructions for

using it to configure the computer.

There are seven expansion-card connectors (se e F igure 1-4) on the system

board. Expansion-card connectors PCI1 through PCI5 support 32-bit PCI

expansion cards; expansion-card connector AGP supports a 32-bit 2X AGP

expansion card; and expansion-card connector ISA1 can accommodate an 8- or

16-bit ISA expansion card.

NOTES: Connector ISA1 shares expansion-slot space with connector PCI5.

Therefore, only one card of either type can be installed in this slot.

PCI4 has a connector extension to support a PCI RAID controller (see

Figure 1-11 for the location of the PCI connectors).

expansion card

expansion-card

connectors (7)

card-edge

connector

System Overview

1-5

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Dell Precision 610 mini tower systems have eight drive bays for installing the

following types of drives (se e F igure 1-5):

‡ The externally accessible drive bays at the front of the computer consist of

one 3.5-inch drive bay (dedicated to a 3.5-inch slimline diskette drive) and

three 5.25-inch drive bays that can hold up to three half-height, 5.25-inch

devices—typically tape drives or CD-ROM drives. Alternately, 3.5-inch

devices can be installed in the 5.25-inch bays using adapters available from

Dell.

‡ The four-bay hard-disk drive cage below the externally accessible bays can

hold up to four 1-inch or up to two 1-inch and two 1.6-inch hard-disk drives

installed vertically. The maximum number of hard-disk drives must be

either two EIDE hard-disk drives or up to four SCSI hard-disk drives.

NOTE: For detailed information about installing SCSI devices, see Chapter 10,

“Installing Drives,” in the User’s Guide.

externallyaccessible

drive bays

four-bay hard-disk

drive cage (internal)

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The enhanced dual-interface EIDE subsystem supports two EIDE interfaces

(primary and secondary), each of which can support up to two EIDE devices.

The EIDE controller resides on the high-speed PCI bus.

The primary EIDE interface (IDE1) provides support for up to two high-

performance EIDE devices. The computer’s boot drive should be connected to

the primary EIDE interface.

The secondary EIDE interface (IDE2) also provides support for up to two high-

performance EIDE devices, typically EIDE tape drives or CD-ROM drives.

1-6

Dell Precision 610 Mini Tower Systems Service Manual

NOTE: The externally accessible drive bays at the front of the computer are

normally used for diskette drives, CD-ROM drives, and/or tape drives. Hard-

disk drives should be installed in the internal hard-disk drive positions

described in “Hard-Disk Drive Options” found earlier in this chapter. For detailed

information about the data storage subsystem, see Chapter 10, “Installing Drives,”

in the User’s Guide.

6&6,ꢀ6XSSRUW

SCSI drives are supported by using two integrated SCSI channels:

‡ The primary (Adaptec AIC-7890) channel provides Ultra2/Wide LVD

(80-MB/sec) support for high-performance SCSI hard-disk drives and an

optional RAID subsystem.

NOTE: To achieve 80-MB/sec support, all of the installed SCSI devices

must support the Ultra2 specification’s 80-MB/sec transfer rate. If they do

not, the transfer rate will default to the speed of the slowest device in the

SCSI chain.

‡ The secondary (Adaptec AIC-7880) channel provides internal Ultra/Narrow

and external Ultra/Wide (40-MB/sec) support for SCSI CD-ROM and tape

drives, optical drives, scanners, and so forth.

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The system board has an onboard 16-bit Crystal CS4237B audio controller chip

and connectors on the back panel for connecting the computer to external

audio devices such as speakers/headphones and microphone. The controller

supports all sound functions contained on the Sound Blaster Pro expansion

card from Creative Laboratories, Inc.

Chapter 6, “Using the Integrated Audio Controller,” in the User’s Guide pro-

vides instructions for connecting the computer to external audio devices and

configuring the integrated audio controller to avoid resource conflicts.

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The video subsystem consists of either a high-speed, high-resolution 2X AGP

or a PCI graphics adapter card. (For more information, see the documentation

that came with the graphics adapter card.) AGP greatly improves graphics per-

formance by providing a dedicated bus for a faster interface between the video

subsystem and system memory. AGP also allows conventional memory to be

used for video-related tasks.

1,&ꢀ

Dell Precision 610 mini tower systems contain an integrated 10/100-Mbps

3Com PCI 3C905b-TX NIC (uses a 3Com 3C917 application-specific integrated

circuit [ASIC]). The NIC subsystem connects to the Ethernet network through

a single RJ45 connector on the back panel of the computer.

System Overview

1-7

The 10/100-Mbps NIC supports a 10-Mbps direct connection to either a

Category 3 or a Category 5 Ethernet cable. When the NIC operates in the

100-Mbps mode, a Category 5 Ethernet cable must be used.

Chapter 5, “Using the Network Interface Controller,” in the User’s Guide pro-

vides instructions for connecting the computer to, and configuring it for use

on, an Ethernet network.

86%

USB capability simplifies connection of peripheral devices such as mice, print-

ers, and computer speakers. The USB connectors on the computer’s back

panel provide a single connection point for multiple USB-compliant devices.

USB-compliant devices can be connected and disconnected while the com-

puter is running.

7KHUPDOꢀ3URWHFWLRQꢀ

If a processor or hard-disk drive exceeds its recommended operating tempera-

ture range, a system event triggers a system management interrupt (SMI),

which alerts the BIOS. If the Dell ThermalShutdown Service is installed, the

power indicator flashes and a message appears on the monitor to alert the

user that the system will shut down in an orderly manner, preventing the loss

of data. If the service is unable to shut down the system within approximately

3 minutes, the BIOS powers down the computer. If the ThermalShutdown Ser-

vice is not installed, the computer turns off immediately.

NOTE: The BIOS powers down the computer in the event of a thermal alert

only if the Thermal Power-Off category is set to ENABLED in the System Setup

program.

1-8

Dell Precision 610 Mini Tower Systems Service Manual

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The following subsections provide service-related information about the

computer.

6\VWHPꢀ3RZHUꢀ6XSSO\ꢀ

The 330-W system power supply can operate from an AC power source of

115 VAC at 60 Hz or 230 VAC at 50 Hz. The system power supply provides the

DC operating voltages and currents listed in Table 1-1.

NOTE: The power supply produces DC voltages only under its loaded condi-

tion. Therefore, when you measure these voltages, the DC power connectors

must be connected to their corresponding power input connectors on the sys-

tem board or drives.

+3.3 VDC

+5 VDC

+12 VDC

–12 VDC

–5 VDC

+3.15 to +3.45 VDC

+4.75 to +5.25 VDC

+11.40 to +12.60 VDC

–10.80 to –13.20 VDC

–4.50 to –5.50 VDC

+4.75 to +5.25 VDC

18.0 A

35.0 A

14.0 A

0.3 A

1.2 A

+5 VFP²

Maximum continuous DC output power should not exceed 330 W. Maximum combined

load on +5 VDC and +3.3 VDC cannot exceed 200 W.

VFP (volts flea power) — sometimes called “standby power.”

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The power-supply output voltages can be measured at the back (wire side) of

the connectors without disconnecting them. Figures 1 -6, 1-7, and 1-8 show the

wire side of the connectors.

System Overview

1-9

–5 VDC (white)

+5 VDC (red)

–5 VDC (white)

common (black)

TFSC (brown)

common (black)

+3.3 VDC (blue/white)

common (black)

PSON# (gray)

13 14 15 16 17 18 19 20 21 22 23 24

10 11 12

+5 VDC (red)

+3.3 VDC (blue/white)

common (black)

+5 VDC (red)

common (black)

PWRGOOD (orange)

–12 VDC (blue)

+12 VDC (yellow)

+5 VFP (purple)

Pin 13 — PSON# should measure between +4 and +5 VDC except when the

power button on the front panel is pressed, taking PSON# to its active-low state.

Pin 22 — Thermal fan-speed control (TFSC) is a power-supply input signal used to

control power-supply fan speed in special applications.

Pin 5 — PWRGOOD should measure between +4 and +5 VDC when the power

supply is operating to indicate that all power-supply output voltages are within the

ranges specified in Table 1-1.

P3, P4, P5

+12 VDC (yellow)

common (black)

+5 VDC (red)

common (black)

+12 VDC (yellow)

1-10

Dell Precision 610 Mini Tower Systems Service Manual

N/C

+5 V (red)

common (black)

+5 V (red)

common (black)

N/C

10 11 12 13 14 15 16

+3.3 VDC (blue/white)

common (black)

+12 V (yellow)

N/C

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Figure s 1 -9 a nd 1 -10 provide the following information about DC power

distribution:

‡ Power-supply connector identification

‡ Power cable connections for diskette, tape, CD-ROM, and hard-disk drives

‡ Power distribution to sockets and connectors on the system board

System Overview

1-11

system board

battery

keyboard

controller

+3.0 VDC

power

management

logic

RTC/

NVRAM

+5 VDC

+12 VDC

–12 VDC

AGP

ISA1

POWER1

PWRGOOD

PSON#

+5 VFP

+5 VDC

–5 VDC

+12 VDC

PSON#

+5 VFP

+5 VDC

–5 VDC

+12 VDC

–12 VDC

+3.3 VDC

+5 VDC

–5 VDC

+12 VDC

–12 VDC

system

power supply

–12 VDC

+3.3 VDC

PCI1

+5 VDC

through

PCI5

+12 VDC

–12 VDC

+3.3 VDC

main

memory

internal

hard-disk drive

+12 VDC

FAN

DIMM_A

DIMM_B

DIMM_C

DIMM_D

internal

hard-disk drive

+5 VFP

+5 VDC

PANEL

USB

internal

hard-disk drive

FUSE

+5 VDC

internal

hard-disk drive

KYBD

2.5-V

1.5-V

MOUSE

converter converter

processor

core regulator

optional

5.25-inch drive

SLOT2_PRI

+1.8–2.8 VDC

+2.5 VDC

optional

5.25-inch drive

+1.5 VDC

SLOT2_SEC

optional

5.25-inch drive

+1.8–2.8 VDC

+2.5 VDC

+1.5 VDC

3.5-inch

diskette drive

1-12

Dell Precision 610 Mini Tower Systems Service Manual

6\VWHPꢀ%RDUG

The subsections that follow provide service-related information about the sys-

tem board and components, which are shown in Figure 1-11.

main power

CD-ROM drive audio

interface connector (CD-IN)

input connector

(POWER1)

SPREAD

jumper

diskette-drive interface

connector (DISK2)

parallel/SCSI port connectors

(PARALLEL/SCSI) (stacked)

battery socket (BATTERY)

serial port connectors

(SERIAL 1/2) (stacked)

secondary diskette-drive interface

connector (DISKETTE)

(pin-1 corner)

processor fan

connector (FAN)

secondary SCSI connector

(SCSI_NARROW)

mouse/keyboard connectors

(MOUSE/KYBD) (stacked)

DIMM sockets

(DIMM_A-DIMM_D)

microphone jack (MIC-IN)

line-out jack (LINE-OUT)

primary SCSI connector

(SCSI_ULTRA2)

front of

computer

line-in jack (LINE-IN)

USB connectors (USB)

NIC connector (ENET)

primary EIDE interface

connector (IDE1) (pin-1 corner)

control panel

connector (PANEL)

primary Slot 2 SEC

cartridge connector (SLOT2_PRI)

secondary EIDE interface

connector (IDE2) (pin-1 corner)

secondary Slot 2 SEC

cartridge connector (SLOT2_SEC)

modem connector (MODEM_IN)

configuration jumpers

power LED

AGP expansion-card connector (AGP)

CPU mismatch LED

PCI expansion-card

connectors (PCI1-PCI5)

standby LED

Wakeup On LAN

hard-disk drive access indicator

card connector (LAN) connector (AUX LED)

ISA expansion-card connector (ISA1)

RAID connector (RAID)

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The four DIMM sockets on the system board can accommodate combinations

of 32-, 64-, and 128-MB DIMMs up to a total memory capacity of 512 MB

using unbuffered SDRAM or up to 2048 MB using registered SDRAM DIMMs.

A minimum of 64 MB RAM is required.

There is no requirement that one socket be filled before the other, and empty

sockets can be left between installed DIMMs. However, Dell recommends

populating the sockets in consecutive order starting with DIMM A. DIMM

sockets do not have to contain DIMMs of the same size. DIMMs may be

installed in any order.

See “DIMMs” in Chapter 4 for information on removing and replacing DIMMs.

System Overview

1-13

6\VWHPꢀ%RDUGꢀ-XPSHUV

Figure 1-12 shows the location of the system board jumpers, and Table 1-2

shows the system board jumper settings.

SPREAD

unjumpered

jumpered

1-14

Dell Precision 610 Mini Tower Systems Service Manual

6\VWHPꢀ%RDUGꢀ-XPSHUꢀ6HWWLQJV

The following table shows the settings and descriptions for the system board

jumpers in Dell Precision 610 mini tower systems.

SPREAD

RSVD4

Reserved (do not remove jumper plug).

Reserved (do not install jumper plug).

RSVD3

RSVD2

Reserved (do not install jumper plug).

RSVD1

Reserved (do not install jumper plug).

450MHZ*

Jumpered when the microprocessor’s

internal speed is 450 MHz.

400MHZ

Jumpered when the microprocessor’s

internal speed is 400 MHz.

350MHZ*

TOWER

Reserved (do not install jumper plug).

System board is installed in a mini tower

chassis (do not install jumper plug).

BIOS

Reserved (do not install jumper plug).

PSWD

default

Password features enabled.

Password features disabled.

One set of the speed jumper pins must have a jumper plug installed; otherwise, the sys-

tem will operate at an undetermined speed.

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

jumpered

unjumpered

System Overview

1-15

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The following table lists the hardware interrupt request (IRQ) assignments for

the Dell Precision 610 mini tower system.

IRQ0

IRQ1

IRQ2

System timer

Keyboard controller

Enables IRQ8 through IRQ15

Serial ports

IRQ3

and

IRQ4

IRQ5

IRQ6

IRQ7

IRQ8

IRQ9

Available

Diskette drive interface

Parallel port

RTC

Available if ACPI is set to Off in System Setup program

IRQ10 Available

IRQ11 Available

IRQ12 Mouse controller

IRQ13 Math coprocessor

IRQ14 Primary EIDE interface (if Enabled in the System Setup program)

IRQ15 Secondary EIDE interface (if Enabled in the System Setup program)

NOTES: For the full name of an abbreviation or acronym used in the table, see the Glossary in

the User’s Guide.

The integrated NIC, SCSI, and sound systems will be assigned an interrupt request dynami-

cally during system start-up.

1-16

Dell Precision 610 Mini Tower Systems Service Manual

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The following table lists the direct memory access (DMA) channel assign-

ments for the Dell Precision 610 mini tower system.

DREQ0

DREQ1

DREQ2

Available

Generated by super I/O controller to initiate DMA cycle for

attached diskette drive

DREQ3

DREQ4

Available

Generated by bus controller chip to activate second DMA

controller

DREQ5

DREQ6

DREQ7

Available

NOTE: The integrated audio controller is assigned one or two DMA channels automatically

during system start-up.

System Overview

1-17

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The following table lists the technical specifications for the Dell Precision 610

mini tower system.

Microprocessor type . . . . . . . . . . . . . . Intel Pentium II Xeon microprocessor

that runs at 400 MHz internally/

100 MHz externally. A slower

compatibility speed can be set through

the System Setup program.

Internal cache . . . . . . . . . . . . . . . . . . . 32 KB (16-KB data cache; 16-KB

instruction cache)

L2 cache . . . . . . . . . . . . . . . . . . . . . . . 512-KB or 1-MB pipelined burst, four-

way set-associative, write-back ECC

SRAM on each Slot 2 SEC cartridge

Math coprocessor . . . . . . . . . . . . . . . . internal to the microprocessor

System chipset . . . . . . . . . . . . . . . . . . Intel Slot 2/440GX PCIset

Data bus width . . . . . . . . . . . . . . . . . . 64 bits

Address bus width. . . . . . . . . . . . . . . . 32 bits

DMA channels . . . . . . . . . . . . . . . . . . . seven

Interrupt levels . . . . . . . . . . . . . . . . . . . 15

System BIOS chip . . . . . . . . . . . . . . . . 2 Mb

Audio controller . . . . . . . . . . . . . . . . . . 16-bit Plug and Play Crystal 4237B

Primary SCSI controller . . . . . . . . . . . . Adaptec 7890 Ultra2/Wide LVD

(Adaptec 2940 U2W-equivalent)

Secondary SCSI controller. . . . . . . . . . Adaptec 7880 Ultra/Wide (Adaptec

2940 UW-equivalent)

NIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Com PCI 3C905b-TX NIC (uses a

3Com 3C917 ASIC) Wakeup On

LAN-capable

I/O controller . . . . . . . . . . . . . . . . . . . . National PC 87309

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

1-18

Dell Precision 610 Mini Tower Systems Service Manual

Bus types . . . . . . . . . . . . . . . . . . . . . . . PCI, ISA, and AGP

Bus speed . . . . . . . . . . . . . . . . . . . . . . PCI: 33.3 MHz

ISA: 8.33 MHz

AGP: 133 MHz

PCI expansion-card connectors . . . . . . five (one of the PCI connectors shares

a card-slot opening with the ISA

connector)

NOTE: PCI4 is the only slot that sup-

ports an add-in RAID coprocessor card

through a 60-pin connector.

ISA expansion-card connectors . . . . . . one (the ISA connector shares a card-

slot opening with one of the PCI

connectors)

AGP expansion-card connectors . . . . . one

PCI expansion-card connector size . . . 120 pins

PCI expansion-card connector data

width (maximum). . . . . . . . . . . . . . . . . 32 bits

ISA expansion-card connector size . . . 98 pins

ISA expansion-card connector data

width (maximum). . . . . . . . . . . . . . . . . 16 bits

AGP expansion-card

connector size . . . . . . . . . . . . . . . . . . . 124 pins

AGP expansion-card connector data

width (maximum). . . . . . . . . . . . . . . . . 32 bits

RAID extension connector size . . . . . . 60 pins

System clock . . . . . . . . . . . . . . . . . . . . 100 MHz

SDRAM memory clock . . . . . . . . . . . . 100 MHz

I/O APIC clock . . . . . . . . . . . . . . . . . . . 14 MHz

Diskette/communications ports . . . . . . 48 MHz

USB clock. . . . . . . . . . . . . . . . . . . . . . . 48 MHz

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

System Overview

1-19

Architecture . . . . . . . . . . . . . . . . . . . . . 72-bit ECC SDRAM

DIMM sockets . . . . . . . . . . . . . . . . . . . four

DIMM capacities . . . . . . . . . . . . . . . . . 64- and 128-MB unbuffered, 72-bit

SDRAM; 256-MB and 512-MB regis-

tered, 72-bit SDRAM

Standard RAM . . . . . . . . . . . . . . . . . . 64 MB

Maximum RAM . . . . . . . . . . . . . . . . . . 2048 MB

NOTE: The maximum amount of RAM

that can be installed using registered

512 MB DIMMs is 2048 MB. The maxi-

mum amount of RAM that can be

installed using unbuffered DIMMs is

512 MB.

BIOS address. . . . . . . . . . . . . . . . . . . . F000:0000h–F000:FFFFh

Externally accessible bays . . . . . . . . . . one 3.5-inch bay dedicated to a 3.5-inch

diskette drive; three 5.25-inch bays for

tape drives, CD-ROM drives, or other

5.25-inch peripherals

Internally accessible bays . . . . . . . . . . two 1.6-inch drive bays and two 1-inch

drive bays for EIDE or SCSI hard-disk

drives installed vertically

Externally accessible:

Serial (DTE) . . . . . . . . . . . . . . . . . . two 9-pin connectors;

16550-compatible

Parallel . . . . . . . . . . . . . . . . . . . . . . . . . one 25-pin connector (bidirectional)

SCSI

(secondary channel). . . . . . . . . . . . . . one 68-pin Ultra/Wide SCSI connector

Video . . . . . . . . . . . . . . . . . . . . . . . . . . one 15-pin DIN connector (on graphics

adapter card)

PS/2-style keyboard. . . . . . . . . . . . . . 6-pin mini-DIN connector

PS/2-compatible mouse . . . . . . . . . . 6-pin mini-DIN connector

NIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . RJ45 connector

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

1-20

Dell Precision 610 Mini Tower Systems Service Manual

USB . . . . . . . . . . . . . . . . . . . . . . . . . . . two USB-compliant 4-pin connectors

Audio line in . . . . . . . . . . . . . . . . . . . . 1/8-inch miniature audio jack

Audio line out . . . . . . . . . . . . . . . . . 1/8-inch miniature audio jack

Audio microphone in . . . . . . . . . . . . 1/8-inch miniature audio jack

Internally accessible:

EIDE drive. . . . . . . . . . . . . . . . . . . . . . two 40-pin connectors on PCI local bus

Primary SCSI channel. . . . . . . . . . . . one 68-pin Ultra2/Wide SCSI connector

Secondary SCSI channel. . . . . . . . . one 50-pin Narrow SCSI connector

Diskette drive . . . . . . . . . . . . . . . . . one 26-pin connector

CD-ROM drive audio interface . . . . 4-pin connector

Wakeup On LAN . . . . . . . . . . . . . . 3-pin connector

Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-pin connector

Control panel connectors:

Thermal sensor. . . . . . . . . . . . . . 3-pin connector

Chassis intrusion . . . . . . . . . . . . 2-pin connector

Speaker . . . . . . . . . . . . . . . . . . . . 4-pin connector

Video type . . . . . . . . . . . . . . . . . . . . . . 2X AGP or PCI graphics adapter card

(see manufacturer’s specifications)

<Ctrl><Alt><Del>. . . . . . . . . . . . . . . . . . restarts (reboots) the system

<F2> or <Ctrl><Alt><Enter> . . . . . . . starts System Setup program (during

POST only while Dell logo screen is

displayed)

Reset control . . . . . . . . . . . . . . . . . . . . push button

Power control. . . . . . . . . . . . . . . . . . . . push button

Power indicator/sleep

mode indicator. . . . . . . . . . . . . . . . . . . green LED (indicates power)

amber LED (indicates sleep mode)

Hard-disk drive access indicator . . . . . green LED

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

System Overview

1-21

Link integrity indicator

(on NIC connector). . . . . . . . . . . . . . . . green LED

Network activity indicator

(on NIC connector). . . . . . . . . . . . . . . . yellow LED

Power indicator

(on system board) . . . . . . . . . . . . . . . . green LED

Standby power indicator

(on system board) . . . . . . . . . . . . . . . . green LED

DC power supply:

Wattage . . . . . . . . . . . . . . . . . . . . . . . . 330 W

Heat dissipation . . . . . . . . . . . . . . . . . 600 BTU/hr (nominal)

Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 90 to 135 V at 60 Hz;

180 to 265 V at 50 Hz;

Autoranging 90 to 265 V

Backup battery. . . . . . . . . . . . . . . . . . . 3-V CR2032 coin cell

Height . . . . . . . . . . . . . . . . . . . . . . . . . 45.9 cm (18.1 inches)

Width . . . . . . . . . . . . . . . . . . . . . . . . . . 21.6 cm (8.5 inches)

Depth . . . . . . . . . . . . . . . . . . . . . . . . . . 43.6 cm (17.6 inches)

Weight . . . . . . . . . . . . . . . . . . . . . . . . 16.0 kg (37.0 lb) or more, depending on

options installed

Temperature:

Operating . . . . . . . . . . . . . . . . . . . . . . 10° to 35°C (50° to 95°F)*

Storage . . . . . . . . . . . . . . . . . . . . . . . . –40° to 65°C (–40° to 149°F)

Relative humidity . . . . . . . . . . . . . . . . . . . 20% to 80% (noncondensing)

Maximum vibration:

Operating . . . . . . . . . . . . . . . . . . . . . . 0.25 G at 3 to 200 Hz for 30 min

Storage . . . . . . . . . . . . . . . . . . . . . . . . 0.5 G at 3 to 200 Hz for 30 min

At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

1-22

Dell Precision 610 Mini Tower Systems Service Manual

Maximum shock:

Operating . . . . . . . . . . . . . . . . . . . . . . . half-sine wave form: 50 G for 2 ms

Storage . . . . . . . . . . . . . . . . . . . . . . . . . half-sine wave form: 110 G for 2 ms

square wave form: 27 G for 15 ms

Altitude:

Operating . . . . . . . . . . . . . . . . . . . . . . .–16 to 3048 m (–50 to 10,000 ft)*

Storage . . . . . . . . . . . . . . . . . . . . . . . . . –16 to 10,600 m (–50 to 35,000 ft)

At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in

the User’s Guide.

System Overview

1-23

1-24

Dell Precision 610 Mini Tower Systems Service Manual

& + $ 3 7 ( 5 ꢁ ꢃ

%DVLFꢀ7URXEOHVKRRWLQJ

This chapter describes basic troubleshooting procedures that can help you

diagnose a computer system problem. These procedures can often reveal the

source of a problem or indicate the correct starting point for troubleshooting

the system. A brief explanation of how to load and start the Dell Diagnostics is

located at the end of the chapter. Dell recommends that you perform the fol-

lowing procedures in the order they are presented in this chapter.

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When you first contact a user who has a problem, ask the user to describe the

problem and the conditions under which it occurs. A verbal description can

often indicate the cause of a problem or indicate the appropriate troubleshoot-

ing procedure to use. After the user describes the problem, follow these

steps:

See the operating system documentation and Appendix D, “Maintaining

the System,” in the User’s Guide for information about backing up data.

Can the user duplicate the problem?

Ye s . Proceed to step 3.

No. Proceed to the next section, “External Visual Inspection.”

Is the problem a result of user error?

Ye s . Instruct the user in the proper procedure, or direct him or her to the

appropriate user documentation for the correct procedure.

No. Proceed to the next section, “External Visual Inspection.”

Basic Troubleshooting

2-1

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The external visual inspection consists of a quick inspection of the exterior of

the computer, the monitor, the keyboard, any peripherals, and cables. While

performing the visual inspection, make any necessary corrections. To perform

the external visual inspection, follow these steps:

For a PS/2-compatible mouse, the keyboard and mouse interface cable

connectors are identical except for their labels. If needed, see “System

Features” in Chapter 1.

For a serial mouse, the mouse interface cable must be firmly attached to

one of the serial port connectors, and its captive screws must be secure

enough to ensure a firm connection.

Each of the serial, parallel, and USB interface cables must be firmly

attached to an appropriate connector on the back of the computer as well

as to the interface connector on the device. The captive screws that secure

these connectors at each end of the interface cable must be secure

enough to ensure a firm connection.

For proper monitor connections, see the documentation for the monitor.

For proper settings of the monitor controls, see the documentation for the

monitor.

If one or more keys are sticking, it may be necessary to replace the

keyboard.

2-2

Dell Precision 610 Mini Tower Systems Service Manual

Does the inspection reveal any problems?

Ye s . Proceed to the appropriate procedure in Chapter 4, “Removing and

Replacing Parts.”

No. Proceed to the next section, “Observing the Boot Routine.”

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After you have performed an external visual inspection as described in the pre-

vious section, you should boot the system and, while the boot routine is

running, observe the system for any indications of problems.

NOTE: Most of the steps in this procedure require observation of system func-

tions and indications, some of which can occur simultaneously. It may be

necessary to reboot the system several times in order to complete all of these

steps.

To observe problem indications during the boot routine, follow these steps:

Does the fan run normally?

Ye s . Proceed to step 3.

No. Troubleshoot the computer’s power supply.

Do these indicators flash on and off within approximately 10 seconds after

the boot routine starts?

Ye s . Proceed to step 4.

No. Troubleshoot the system power supply. If the troubleshooting pro-

cedure indicates that the system power supply is operational, troubleshoot

the memory.

Basic Troubleshooting

2-3

‡ Diskette-drive and hard-disk drive access indicators

These indicators light up in response to data being transferred to or

from the drives. If either of these indicators fails to light up during the

boot routine, troubleshoot the diskette drive or hard-disk drive sub-

system, as appropriate.

‡ Beep codes

A beep code is a series of beeps that indicates an error condition. If the

system emits a beep code, see Table 3-1.

‡ System error messages

These messages can indicate problems or provide status information.

If a system error message is displayed, see Table 3-2.

Does the Diagnostics Menu appear?

Ye s . See “Running the Dell Diagnostics” found later in this chapter.

No. Proceed to step 6.

Does the Diagnostics Menu appear?

Ye s . See “Running the Dell Diagnostics” found later in this chapter.

No. Proceed to the next section, “Internal Visual Inspection.”

2-4

Dell Precision 610 Mini Tower Systems Service Manual

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A simple visual inspection of a computer’s interior hardware can often lead to

the source of a problem, such as a loose expansion card, cable connector, or

mounting screw. When you perform the visual inspection, refer to “System

Features” in Chapter 1 to locate components in the inspection procedure.

To perform the internal visual inspection, perform the following steps in the

sequence indicated.

Basic Troubleshooting

2-5

To ensure that the chips are fully seated in their sockets, press firmly on

the top of each chip.

To reseat the microprocessor, remove and reinstall it as described in

“Microprocessor Slot 2 SEC Cartridge/Heat Sink Assembly” in Chapter 4.

To reseat a DIMM, remove it from its socket and reinstall it as described in

“DIMMs” in Chapter 4.

If you need to reseat an expansion card, use a 1/4-inch nut driver to

remove the screw that secures the card-mounting bracket. Grasp the card

by its top corners, and carefully pull it out of its connector. Reinsert the

card in its connector, and carefully push it in until it is fully seated. Then

reinstall the card-mounting bracket’s retaining screw (see “Expansion

Cards” in Chapter 4 for more information).

For information about these jumpers, see “System Board Jumpers” in

Chapter 1.

Does the problem appear to be resolved?

Ye s . No further steps are necessary.

No. Proceed to “Eliminating Resource Conflicts,” “Running the Dell Diag-

nostics,” and “Getting Help” found later in this chapter.

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Devices within or connected to the computer may require dedicated memory

spaces, interrupt levels, or DMA channels, all of which must be allocated dur-

ing installation of the devices. Because devices may be installed at different

times, it is possible that the same resource is assigned to two or more

devices.

Resource conflicts can result in disorderly or erratic system operation or failure

of the system to operate at all. If you suspect that resource conflicts might

exist, check the system using the Windows NT Diagnostics in the

2-6

Dell Precision 610 Mini Tower Systems Service Manual

Administrative Tools folder or the ISA Configuration Utility (ICU), and reassign

the resources as necessary. See “Advanced Expansion Subsystem” in

Chapter 1 for information on the Device Manager and the ICU. See “Interrupt

Request Assignments” in Chapter 1 to help identify possible conflicts. Also

review the documentation provided with any installed expansion cards and

other devices for additional interrupt information for the specific devices.

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The Dell Diagnostics (included with the system) contains tests that aid in

troubleshooting all major components of the computer system.

To start the Dell Diagnostics, turn off the system, insert a diagnostics diskette

into drive A, and then turn on the system.

Starting the diagnostics causes the Dell logo screen to appear on the monitor

screen, followed by a message indicating that the diagnostics is loading.

Before the diagnostics loads, a program tests the portion of main memory

(RAM) required for loading the diagnostics. If a RAM error is detected, a mes-

sage appears on the screen telling you which DIMM has failed.

If no errors are found in RAM, the diagnostics loads and the Diagnostics Menu

appears. This menu lets you choose the following options or exit to the

MS-DOS prompt:

‡ Run Quick Tests — Runs selected tests from all test groups to quickly

locate a failure or to indicate where further testing is needed to isolate a

failure

‡ Run All Tests — Runs all tests for a thorough test of the system

‡ Run Specific Tests — Tests a particular area or subsystem

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If none of the troubleshooting procedures in this chapter or the tests in the

Dell Diagnostics reveals the source of the problem or leads to the proper

troubleshooting steps for determining the source of the problem, call Dell for

technical assistance. For instructions, see the chapter titled “Getting Help” in

the Diagnostics and Troubleshooting Guide.

Basic Troubleshooting

2-7

2-8

Dell Precision 610 Mini Tower Systems Service Manual

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This chapter describes beep codes and system error messages that can occur

during system start-up or, in the case of some failures, during normal system

operation. The tables in this chapter list faults that can cause a beep code or

system error message to occur and the probable causes of the fault in each

case.

If a faulty system does not emit beep codes or display system error messages

to indicate a failure, you should run the appropriate tests in the Dell Diagnos-

tics to help isolate the source of the problem. See “Running the Dell

Diagnostics” in Chapter 2.

3267ꢀ%HHSꢀ&RGHV

If the monitor cannot display error messages during the POST, the system may

emit a series of beeps that identifies the problem or that can help you identify

a faulty component or assembly. T a b l e 3 -1 lists the beep codes that may be

generated during the POST. Most beep codes indicate an error that may pre-

vent the system from completing the boot routine until the indicated condition

is corrected. If the table does not lead to the source of the problem, run the

appropriate tests in the Dell Diagnostics to assist in troubleshooting the

problem.

Beep Codes and Error Messages

3-1

1-1-3

1-1-4

NVRAM write/read failure

BIOS checksum failure

Defective system board

Faulty BIOS or defective sys-

tem board

1-2-1

Programmable interval-

timer failure

Defective system board

1-2-2

1-2-3

DMA initialization failure

DMA page register write/

read failure

1-3-1

1-3-2

1-3-3

Main-memory refresh verifi- Faulty or improperly seated

cation failure

DIMMs or defective system

board

No 100-MHz DIMM

installed

No 100-MHz DIMM installed

or faulty or improperly seated

DIMM

Chip or data line failure in

the first 64 KB of main

memory

Faulty or improperly seated

DIMMs

1-3-4

1-4-1

1-4-2

Odd/even logic failure in the

first 64 KB of main memory

Address line failure in the

first 64 KB of main memory

Parity failure in the first

64 KB of main memory

2-1-1

through

2-4-4

Bit failure in the first 64 KB

of main memory

3-1-1

3-1-2

3-1-3

Slave DMA-register failure

Master DMA-register failure

Defective system board

Master interrupt-mask regis-

ter failure

3-1-4

3-2-4

Slave interrupt-mask regis-

ter failure

Keyboard-controller test

failure

Faulty keyboard controller

(defective system board)

3-2

Dell Precision 610 Mini Tower Systems Service Manual

3-3-4

3-4-1

3-4-2

Screen initialization failure

Screen-retrace test failure

Faulty video subsystem

(defective graphics adapter

card)

Search for video ROM

failure

4-2-1

4-2-2

4-2-3

4-2-4

No timer tick

Defective system board

Shutdown failure

Gate A20 failure

Unexpected interrupt in pro-

tected mode

4-3-1

Memory failure above

address 0FFFFh

Faulty or improperly seated

DIMMs

4-3-3

4-3-4

Timer-chip counter 2 failure

Time-of-day clock stopped

Defective system board

Bad battery or defective sys-

tem board

4-4-1

Serial/parallel port test

failure

Faulty I/O chip (defective sys-

tem board)

Beep Codes and Error Messages

3-3

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T a b l e 3 -2 lists (in alphabetical order) system error messages that can appear on

the monitor screen. These messages can help you find the source of a

problem.

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Some error messages indicate fatal errors. When a fatal error occurs, the sys-

tem usually cannot be rebooted until an appropriate hardware change has

been made. The following messages indicate that a fatal error has occurred.

Their definitions and probable causes are listed in T a b l e 3 -2.

‡ Alert! Primary processor is out of rev. System halted

‡ Alert! Secondary processor is out of rev. System halted

‡ Bad error-correction code (ECC) on disk read

‡ Controller has failed

‡ Data error

‡ ECC memory error

‡ Gate A20 failure

‡ Hard disk controller failure

‡ Hard disk drive read failure

‡ Hard disk failure

‡ Keyboard clock line failure

‡ Keyboard controller failure

‡ Keyboard data line failure

‡ Keyboard stuck key failure

‡ No timer tick interrupt

‡ Shutdown failure

‡ Timer chip counter 2 failed

3-4

Dell Precision 610 Mini Tower Systems Service Manual

Address mark

not found

BIOS found faulty disk

sector or could not find

particular disk sector.

Faulty diskette/tape drive

subsystem or hard-disk

drive subsystem (defec-

tive system board), faulty

interface cable or

Attachment

failed to

respond

Diskette drive or hard-

disk drive controller

cannot send data to

associated drive.

connector.

Alert! Cover

was previously

removed.

Cover was previously

removed.

Cover was previously

removed.

Alert! Hard

disk drive

thermal probe

failure

Hard-disk drive thermal No hard-disk drive

probe has failed.

thermal probe installed,

defective thermal probe,

or thermal cable not con-

nected to the control

panel.

detected.

Alert! One or

more of the

Memory DIMMs

are out of rev.

System detected that

one or more of the

DIMMs are not the cor- tion or 66-MHz DIMMs

rect revision. are installed.

DIMMs do not meet

Intel’s SPD 1.2 specifica-

Alert! Previ-

ous fan

failure.

System fan failed during No fan installed, defec-

the previous operating

session.

tive fan, or fan cable not

connected.

Alert! Previ-

ous hard-disk

drive thermal

failure.

The hard-disk drive(s)

exceeded its recom-

mended operating

temperature during the

previous operating

session.

Operating environment is

too hot (above 35°C). The

system vents may be

blocked, causing the sys-

tem to overheat.

Alert! Previ-

ous processor

thermal

The microprocessor

exceeded its recom-

mended operating

temperature during the

previous operating

session.

Operating environment is

too hot (above 35°C). The

system vents may be

blocked, causing the sys-

tem to overheat.

failure.

Alert! Previ-

ous voltage

failure.

System voltage

exceeded or fell below

an acceptable

Defective power supply.

threshold.

Beep Codes and Error Messages

3-5

Alert! Primary

processor is

out of rev.

System detected that

the primary processor is supported by Dell.

not the correct revision.

Processor is a type not

If the system contains

more than 512 MB of

RAM, this message will

be followed by a Sys-

tem Haltedmessage.

Alert! Proces-

sor thermal

probe failure

detected.

Processor or

system board has

failed.

Faulty processor or

defective system board.

Alert! Second-

ary processor

is out of rev.

System detected that

the secondary proces-

sor is not the correct

revision. If the system

contains more than

512 MB of RAM, this

message will be fol-

lowed by a System

Haltedmessage.

Processor is a type not

supported by Dell.

Alert! Single-

bit memory

error previ-

ously detected

in XXXXh.

Single-bit ECC error

was detected during

the previous operating

session.

Faulty or improperly

seated DIMMs or defec-

tive system board.

Alert! System

fan was not

detected.

System fan was not

detected.

No fan installed, defec-

tive fan, or fan cable not

connected.

Alert! Unbuf-

fered and

registered

SDRAM DIMMs

cannot be

mixed.

Mixing of unbuffered

and registered SDRAM

DIMMs is not

Two different types

(unbuffered and regis-

tered) of SDRAM DIMMs

have been installed

together and may not be

compatible.

supported.

Alert! Uncor-

rectable memory

error previ-

ously detected

in XXXXh.

Multibit ECC error was

detected during the pre- seated DIMMs or defec-

vious operating session. tive system board.

Faulty or improperly

Auxiliary

System detected a

mouse failure.

Faulty mouse, or faulty

mouse controller or key-

board is attached to the

mouse connector.

Device fail-

ure. Verify

that mouse and

keyboard are

securely

attached to

connectors.

3-6

Dell Precision 610 Mini Tower Systems Service Manual

Bad command or

file name

Command entered

does not exist, is faulty, tax, or incorrect filename.

or is not in pathname

specified.

Faulty command and syn-

Bad error-

correction code

(ECC) on disk

read

Diskette drive or hard-

disk drive controller

detected an uncorrect-

able read error.

Faulty diskette/tape drive

subsystem or hard-disk

drive subsystem (defec-

tive system board).

Boot: Couldn’t

find NTLDR

A nonbootable diskette

formatted with Win-

dows NT was detected

in the diskette drive.

A nonbootable diskette is

preventing the system

from booting. Remove

the diskette to boot the

system from the hard-

disk drive or from a

bootable diskette.

Controller has

failed

Hard-disk drive or

associated controller is

defective.

Faulty hard-disk drive

subsystem or defective

system board.

Data error

System received un-

recoverable data-read

error from diskette or

hard-disk drive.

Faulty diskette, diskette

drive, or hard-disk drive.

Decreasing

available

memory

Read/write failure

during POST prevents

system from using avail- seated.

able memory.

One or more DIMMs are

faulty or improperly

Diskette drive 0 Diskette/tape drive con- Faulty or improperly

seek failure

troller could not locate

specific sector or track.

inserted diskette,

incorrect settings in Sys-

tem Setup program,

loose diskette/tape drive

interface cable, or loose

power cable.

Diskette drive 1

seek failure

Diskette read

failure

Failure occurred while

system attempted to

read diskette.

Faulty diskette, faulty or

improperly connected

diskette/tape drive inter-

face cable, or loose

power cable.

Diskette sub-

system reset

failed

System could not suc-

cessfully issue reset

command to diskette

controller.

Faulty diskette/tape drive

controller (defective sys-

tem board).

Diskette write

protected

Diskette write-protect

feature was activated.

Diskette is write-

protected.

Beep Codes and Error Messages

3-7

Drive not ready

Diskette is missing from Missing, defective, un-

or is improperly inserted formatted, or improperly

in diskette drive.

inserted diskette.

ECC memory

error

Uncorrectable multibit

ECC memory error is

detected.

Faulty or improperly

seated DIMMs or defec-

tive system board.

Gate A20

failure

Gate A20 of the

keyboard controller

malfunctioned.

Faulty keyboard controller

(defective system board).

General failure

Operating system can-

not execute command.

Corrupted or improperly

installed operating

system.

Hard disk

controller

failure

Hard-disk drive failed to Incorrect configuration

initialize.

settings in System Setup

program, improperly con-

nected hard-disk drive

cable, faulty hard-disk

controller subsystem

Hard disk drive

read failure

(defective system board),

or loose power cable.

Hard disk

failure

Invalid config-

uration

information -

please run

System Setup program

contains incorrect

system configuration

settings.

Incorrect configuration

settings in System Setup

program or faulty battery.

SETUP program

Keyboard clock

line failure

System cannot commu- Keyboard cable connec-

nicate with keyboard.

tor loose or improperly

connected, defective

keyboard, or defective

keyboard/mouse control-

ler (defective system

board).

Keyboard

failure

Keyboard data

line failure

Keyboard stuck

key failure

Keyboard

controller

failure

Keyboard/mouse con-

troller failed.

Defective keyboard/

mouse controller (defec-

tive system board).

3-8

Dell Precision 610 Mini Tower Systems Service Manual

Memory address

line failure at

address, read

value expecting

value

During memory test,

value read at address

was incorrect.

Faulty or improperly

seated DIMMs or defec-

tive system board.

Memory data line

failure at

address, read

value expecting

value

Memory double

word logic fail-

ure at

address, read

value expecting

value

Memory odd/even

logic failure at

address, read

value expecting

value

Memorywrite/read

failure at

address, read

value expecting

value

Memory alloca-

tion error

Software in use con-

flicts with operating

system, application pro-

gram, or utility.

Faulty application pro-

gram or utility.

Memory tests

terminated by

keystroke

Memory test did not

complete.

POST memory test ter-

minated by user pressing

<Spacebar>.

Network card is

not present in

the system

System does not detect Incorrect NIC drivers

NIC. installed.

No boot device

available

System does not recog- Faulty diskette, diskette/

nize diskette drive or

hard-disk drive from

which it is trying to

boot.

tape drive subsystem,

hard-disk drive, hard-disk

drive subsystem, or no

boot disk in drive A.

Beep Codes and Error Messages

3-9

No boot sector

on hard-disk

drive

Incorrect configuration

settings in System

Setup program, or

corrupted operating

system.

Incorrect configuration

settings in System Setup

program, or no operating

system on hard-disk

drive.

No timer tick

interrupt

Timer on system board

is malfunctioning.

Defective system board.

Non-system disk

or disk error

Diskette in drive A or

hard-disk drive does not tape drive subsystem, or

have bootable operating hard-disk drive sub-

Faulty diskette, diskette/

system installed on it.

system (defective system

board).

Not a boot

diskette

No operating system on No operating system on

diskette.

Plug and Play

Configuration

Error

System encountered

problem in trying to

configure one or more

expansion cards.

System resource conflict.

Read fault

MS-DOS cannot read

from diskette or hard-

disk drive.

Faulty diskette, diskette/

tape drive subsystem, or

hard-disk drive sub-

system (defective system

board).

Requested sec-

tor not found

System could not find

particular sector on

disk, or requested sec-

tor is defective.

Reset failed

Disk reset operation

failed.

Improperly connected

diskette/tape drive, hard-

disk drive interface cable,

or power cable.

Sector not

found

MS-DOS is unable to

locate sector on dis-

kette or hard-disk drive.

Defective sectors on dis-

kette or hard-disk drive.

Seek error

MS-DOS is unable to

locate specific track on

diskette or hard-disk

drive.

Defective diskette or

hard-disk drive.

Seek operation

failed

System could not find

particular address mark disk drive.

on disk.

Faulty diskette or hard-

Shutdown

failure

System board chip is

faulty.

Defective system board.

3-10

Dell Precision 610 Mini Tower Systems Service Manual

System halted

System locked up

because the processor

is not the correct

revision.

System processor is not

a type supported by Dell

and more than 512 MB of

RAM is installed.

Time-of-day

clock stopped

System battery is low.

Defective battery or

faulty chip (defective sys-

tem board).

Time-of-day not

set

Time or Date settings in Incorrect Time or Date

System Setup program settings, or defective sys-

are incorrect, or the sys- tem battery.

tem battery does not

work.

Timer chip

counter 2

failed

Timer circuit on system Defective system board.

board is malfunctioning.

WARNING: Dell’s

Disk Monitor-

ing System has

detected that

drive [0/1] on

the [0/1] EIDE

controller is

operating out-

side of normal

specifica-

POST queried EIDE

drive for status. Drive

detected possible error

conditions.

Unreliable or defective

drive.

tions. It is

advisable to

immediately

back up your

data and

replace your

hard-disk drive

by calling your

support desk or

Dell Computer

Corporation.

Write fault

MS-DOS cannot write

to diskette or hard-disk

drive.

Faulty diskette or hard-

disk drive.

Write fault on

selected drive

Beep Codes and Error Messages

3-11

3-12

Dell Precision 610 Mini Tower Systems Service Manual

& + $ 3 7 ( 5 ꢁ ꢅ

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This chapter provides procedures for removing the components, assemblies,

and subassemblies in the Dell Precision 610 mini tower systems.

Unless otherwise noted, each procedure assumes the following:

‡ You have performed the steps in “Precautionary Measures” found later in

this chapter.

‡ You have removed the computer cover.

‡ You can replace or reinstall a part by performing the removal procedure in

reverse order unless additional information is provided.

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Most of the procedures in this chapter require the use of one or more of the

following tools:

‡ Small flat-blade screwdriver

‡ Wide flat-blade screwdriver

‡ #1 and #2 Phillips-head screwdrivers

‡

1/4-inch nutdriver

‡ Tweezers or long-nose pliers

Also, use a wrist grounding strap as explained in the next section, “Precaution-

ary Measures.”

Removing and Replacing Parts

4-1

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Before you perform any of the procedures in this chapter, take a few moments

to read the following warning for your personal safety and to prevent damage

to the system from ESD.

While you work, periodically touch an unpainted metal surface on the com-

puter chassis to dissipate any static electricity that might harm internal

components. Also avoid touching components or contacts on a card and

avoid touching pins on a chip.

4-2

Dell Precision 610 Mini Tower Systems Service Manual

&RPSXWHUꢀ&RYHU

release button

To remove the computer cover, follow these steps:

Removing and Replacing Parts

4-3

Before you reinstall the cover, fold all cables out of the way so that they do not

interfere with the cover or with the proper airflow inside the computer.

When you boot the system, you will need to reset the chassis intrusion detec-

tor by entering the System Setup program and changing the Chassis Intrusion

setting to Not Detected. See Appendix A for information on the System Setup

program. If you need further information, see Chapter 3, “Using the System

Setup Program,” in the User’s Guide.

NOTES: After removing and replacing the cover, the chassis intrusion detector

will cause the following message to be displayed at the next system start-up:

ALERT! Cover was previously removed.

If a setup password has been assigned by someone else, contact the network

administrator for information on resetting the chassis intrusion detector.

4-4

Dell Precision 610 Mini Tower Systems Service Manual

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tab release

retaining hooks (2)

padlock ring

To remove the front bezel, follow these steps:

Removing and Replacing Parts

4-5

3RZHUꢀDQGꢀ5HVHWꢀ%XWWRQV

front bezel

power button

reset button

To remove the power and reset buttons, follow these steps:

When these clips are released, the button comes free from the bezel.

4-6

Dell Precision 610 Mini Tower Systems Service Manual

)URQWꢃ3DQHOꢀ,QVHUWV

front of bezel

posts (2)

5.25-inch

front-panel insert

ring-tabs (2)

To remove a 5.25-inch front-panel insert, follow these steps:

To replace a 5.25-inch front-panel insert, position the two ring-tabs over the

posts on the inside of the bay opening, and then press the ring-tabs over the

posts.

Removing and Replacing Parts

4-7

&DUGꢀ*XLGH

chassis

control

panel

cable

card guide

tabs (3)

To remove the card guide, follow these steps:

NOTE: Some older PCI and other types of cards may be so long that you can-

not remove the card guide until you first remove the cards. Most newer cards

are not long enough to interfere with card guide removal.

4-8

Dell Precision 610 Mini Tower Systems Service Manual

&RQWUROꢀ3DQHO

control panel

thermal sensor

cable

connector

control

panel cable

mounting

screw

speaker cable

connector

chassis intrusion switch

cable connector

To remove the control panel, follow these steps:

Note the routing of the control panel cable as you remove it from the

chassis. It is important to route the cable properly when you replace it to

prevent it from being pinched or crimped.

Open the drive cage door, pull the control panel cable through the opening

in the front wall, and carefully remove the cable from the routing tab in the

drive cage door.

Removing and Replacing Parts

4-9

6SHDNHU

speaker

connector

To remove the speaker, follow these steps:

4-10

Dell Precision 610 Mini Tower Systems Service Manual

'ULYHV

Figure 4-8 s hows an example of drive hardware that can be installed in the

Dell Precision 610 mini tower system. Refer to this figure when you perform

any of the procedures in the following subsections.

3.5-inch diskette drive housing

DC power/interface cable

DSKT2 connector

externally accessible

drive bays

hard-disk drive bracket

EIDE cable

primary EIDE connector (IDE1)

secondary EIDE connector (IDE2)

Removing and Replacing Parts

4-11

([WHUQDOO\ꢀ$FFHVVLEOHꢀ'ULYHꢀ$VVHPEOLHV

The Dell Precision 610 mini tower system can accommodate up to four exter-

nally accessible drive assemblies: the 3.5-inch diskette drive and up to three

5.25-inch drives.

ꢁꢂꢃꢄ,QFKꢀ'LVNHWWHꢀ'ULYHꢀ$VVHPEO\

retaining-tab

release button

To remove the 3.5-inch diskette drive assembly, follow these steps:

Note the routing of the DC power/interface cable through the chassis as

you remove it from the system board. It is important to route the cable

properly when you replace it to prevent it from being pinched or crimped.

4-12

Dell Precision 610 Mini Tower Systems Service Manual

hook

drive release

lever

diskette

drive

retaining

tabs (2)

bracket

When you replace the 3.5-inch diskette drive on the bracket, be sure that the

two retaining tabs on the left side of the bracket engage the mounting holes in

the side of the 3.5-inch diskette drive.

Removing and Replacing Parts

4-13

ꢃꢂꢅꢃꢄ,QFKꢀ'ULYHꢀ$VVHPEO\

bracket tabs (2)

To remove a 5.25-inch drive assembly from one of the drive bays, follow these

steps:

4-14

Dell Precision 610 Mini Tower Systems Service Manual

bracket

bracket tabs (2)

screws (4)

When you replace the 5.25-inch drive, align the front of the drive flush with the

bracket tabs at the front of the bracket. Insert the four screws, and tighten

them in the order stamped on the bottom of the 5.25-inch drive bracket.

Removing and Replacing Parts

4-15

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%UDFNHW

tabs on bracket (2)

drive cage door

drive cage

arms on drive

cage door (2)

To remove the hard-disk drive bracket, follow these steps:

If any hard-disk drives are already installed in the bracket, disconnect the

DC power cable and interface cable from each drive.

Grasp the handle of the drive cage door on the front of the chassis, and pull

out and down until the arms on the drive cage door (se e F igure 4-13) disen-

gage from the tabs on the bracket. This action pulls the bracket out of the

drive cage about 1 to 3 inches.

When removing the bracket from the drive cage, you should remove it

slowly and cautiously, using two hands to support the weight of the

bracket. The bracket can be quite heavy, especially if it is populated with

drives.

4-16

Dell Precision 610 Mini Tower Systems Service Manual

+DUGꢃ'LVNꢀ'ULYH

bracket

screws (4)

1.6-inch drive (front)

To remove a hard-disk drive, follow these steps:

If you are replacing more than one hard-disk drive in the bracket, do not fully

tighten any of the screws that hold the drives in the bracket until all of the

drives have been placed into the bracket. This prevents the bracket from com-

pressing, which could make it difficult to insert additional drives.

When you replace the hard-disk drive bracket, be sure that it is pushed fully

into the system and snapped into position before you close the drive cage door

(See F i g ure 4 -13).

When you are ready to replace the front bezel, be sure to fold the drive cage

door handle down to avoid interference with the front bezel.

Removing and Replacing Parts

4-17

6\VWHPꢀ3RZHUꢀ6XSSO\

DC power

cables

power supply

slot

power-supply

detent link

securing tab

To remove the system power supply, follow these steps:

Press the securing tab to release the power supply.

Note the routing of the DC power cables underneath the tabs in the chas-

sis as you remove them from the system board and drives. It is important

to route these cables properly when you replace them to prevent them

from being pinched or crimped.

When you reinstall the power supply, place the power-supply detent link over

the pin on the power supply as you position the power supply in the chassis

opening.

4-18

Dell Precision 610 Mini Tower Systems Service Manual

0LFURSURFHVVRUꢀ)DQꢀ

microprocessor

fan connector

fan power

cable

microprocessor fan

plastic lock

latching tabs (4)

To remove the microprocessor fan, follow these steps:

Removing and Replacing Parts

4-19

6\VWHPꢀ%RDUGꢀ&RPSRQHQWV

The subsections that follow contain procedures for removing system board

components, which are shown in Figure 4-17.

main power

SPREAD

CD-ROM drive audio

interface connector (CD-IN)

input connector

(POWER1)

jumper

diskette-drive interface

connector (DISK2)

parallel/SCSI port connectors

(PARALLEL/SCSI) (stacked)

battery socket (BATTERY)

serial port connectors

(SERIAL 1/2) (stacked)

secondary diskette-drive interface

connector (DISKETTE)

(pin-1 corner)

processor fan

connector (FAN)

secondary SCSI connector

(SCSI_NARROW)

mouse/keyboard connectors

(MOUSE/KYBD) (stacked)

DIMM sockets

(DIMM_A-DIMM_D)

microphone jack (MIC-IN)

line-out jack (LINE-OUT)

primary SCSI connector

(SCSI_ULTRA2)

front of

computer

line-in jack (LINE-IN)

USB connectors (USB)

NIC connector (ENET)

primary EIDE interface

connector (IDE1) (pin-1 corner)

control panel

connector (PANEL)

primary Slot 2 SEC

cartridge connector (SLOT2_PRI)

secondary EIDE interface

connector (IDE2) (pin-1 corner)

secondary Slot 2 SEC

cartridge connector (SLOT2_SEC)

modem connector (MODEM_IN)

configuration jumpers

power LED

AGP expansion-card connector (AGP)

CPU mismatch LED

PCI expansion-card

connectors (PCI1-PCI5)

standby LED

Wakeup On LAN

hard-disk drive access indicator

card connector (LAN) connector (AUX LED)

ISA expansion-card connector (ISA1)

RAID connector (RAID)

4-20

Dell Precision 610 Mini Tower Systems Service Manual

([SDQVLRQꢀ&DUGV

There are seven expansion-card connectors on the system board (see

Figure 4-18). Expansion-card connectors PCI1 through PCI5 support 32-bit PCI

expansion cards; expansion-card connector AGP supports a 32-bit AGP expan-

sion card; and expansion-card connector ISA1 can accommodate an 8- or 16-bit

ISA expansion card.

NOTES: Connector ISA1 shares expansion-card slot space with connector

PCI5. Therefore, only one card of either type can be installed in this slot.

PCI4 has a connector extension to support a PCI RAID controller (see

Figure 4-17 for the location of the PCI connectors).

expansion-card

connectors (7)

mounting bracket

screw

card-edge

connector

expansion card

Follow this general procedure to remove an expansion card:

Removing and Replacing Parts

4-21

NOTE: Installing filler brackets over empty card-slot openings is necessary

to maintain Federal Communications Commission (FCC) certification of the

system. The brackets also keep dust and dirt out of your computer.

NOTE: After you remove and replace the cover, the chassis intrusion detec-

tor will cause the following message to be displayed at the next system

start-up:

ALERT! Cover was previously removed.

See Chapter 3, “Using the System Setup Program,” in the User’s Guide for

instructions.

NOTE: If a setup password has been assigned by someone else, contact

that person for information on resetting the chassis intrusion detector.

4-22

Dell Precision 610 Mini Tower Systems Service Manual

',00V

DIMM

securing clips (2)

To remove a DIMM, follow these steps:

DIMM

securing clips (2)

To replace a DIMM, press the DIMM fully into the socket (see step 1 of

Figure 4-20) while closing the securing clips to lock the DIMM into the socket

(see step 2 of Figure 4-20).

Removing and Replacing Parts

4-23

0LFURSURFHVVRUꢀ6ORWꢀꢄꢀ6(&ꢀ&DUWULGJHꢈ+HDWꢀ6LQNꢀ

$VVHPEO\

thumbscrews (4)

top bracket

holes (4)

top bracket

heat sink

Slot 2 SEC

cartridge

guide bracket

assembly

To remove a microprocessor Slot 2 SEC cartridge/heat sink assembly, follow

these steps:

You must use up to 15 pounds of force to disengage the Slot 2 SEC

cartridge from its connector.

4-24

Dell Precision 610 Mini Tower Systems Service Manual

To install a Slot 2 SEC cartridge/heat sink assembly, press the cartridge firmly

into its connector until it is firmly seated. You must use up to 25 pounds of

force to fully seat the cartridge in its connector. Place the top bracket on top of

the cartridge. Install the four large thumbscrews through the top bracket holes

and through the holes in the guide bracket assembly to secure the heat sink to

the system board.

NOTE: Both processor slots must be populated with either a Pentium II Xeon

processor or a Dell terminator card. If a slot is not occupied, or if a non-Dell ter-

minator card is installed, the system will not power on.

If necessary, change the processor speed jumper setting (se e F igure 4-17 to

locate system board jumpers).

The processor speed jumper should be set for the installed processor’s rated

internal speed. For example, for a 400-MHz Intel Pentium II Xeon processor, a

jumper plug should be installed on the pins labeled “400MHZ.” (See Chapter 1,

“System Board Jumpers,” for more information on the jumpers.) The processor

speed jumper setting must not exceed the slowest internal speed of either

processor.

Removing and Replacing Parts

4-25

7HUPLQDWRUꢀ&DUGꢀꢀꢀꢀꢀꢀꢀ

thumbscrews (4)

top bracket

terminator card

SLOT 2_SEC connector

If you are adding a second Pentium II Xeon processor to a single-Pentium II

Xeon processor system, remove the terminator card from the secondary Slot 2

SEC cartridge connector (labeled “SLOT2_SEC”).

NOTE: Be sure that the power requirements for both processors match.

Otherwise, the CPU mismatch LED will light up and the system will not

power on.

4-26

Dell Precision 610 Mini Tower Systems Service Manual

6\VWHPꢀ%DWWHU\

battery

BATTERY socket

To remove the system battery, follow these steps:

Carefully pry the system battery out of its socket with your fingers or with

a blunt, nonconducting object, such as a plastic screwdriver.

When you replace the system battery, orient the new battery with the “+”

facing up. Insert the battery into its socket and snap it into place.

Removing and Replacing Parts

4-27

6\VWHPꢀ%RDUG

screw

slots (7)

system board

tabs (7)

If you are replacing a system board, remove the DIMMs, the primary micro-

processor SEC cartridge/heat sink assembly, and the terminator card or

secondary microprocessor assembly, and install them on the replacement

board.

When you reinstall the system board, before you slide the system board back

to lock it in position, push down near each slot to engage the grounding clip

onto its corresponding tab. Push evenly on both sides of the system board as

you slide it into position (do not twist the system board).

4-28

Dell Precision 610 Mini Tower Systems Service Manual

$ 3 3 ( 1 ' , ; ꢁ $

6\VWHPꢀ6HWXSꢀ3URJUDP

This appendix describes the System Setup program for the Dell Precision 610,

which is used to change the system configuration information stored in

NVRAM on the system board.

To enter the System Setup program, follow these steps:

If you wait too long and the operating system begins to load into memory, let

the system complete the load operation; then shut down the system and try

again.

NOTE: To ensure an orderly system shutdown, consult the documentation that

accompanied the operating system.

System Setup Program

A-1

6\VWHPꢀ6HWXSꢀ6FUHHQ

configuration options

system data

title box

Dell Computer Corporation (www.dell.com)-Precision WorkStation 610 MT

BIOS Version: A00

Service Tag: A1234

Intel(R) Pentium(R) II Xeon(TM) Processor: 400 MHz

Level 2 Cache: 1 MB Integrated

System Time ....................................... 10:11:12

System Date ....................................... Thu May 28, 1998

Diskette Drive A: ................................. 3.5 inch, 1.44 MB

Diskette Drive B: ................................. Not Installed

Primary Drive 0 ................................... Hard Drive

Primary Drive 1 ................................... Off

Secondary Drive 0 ................................. CD-ROM Reader

Secondary Drive 1 ................................. Off

Hard-Disk Drive Sequence .......................... <ENTER>

Boot Sequence ..................................... <ENTER>

System Memory ..................................... 64 MB ECC SDRAM

Reserved Memory ................................... None Reserved

CPU Speed ......................................... 400 MHz

CPU ID(s) ......................................... 652,652

Integrated Devices ................................ <ENTER>

System Security ................................... <ENTER>

Keyboard NumLock .................................. On

Report Keyboard Errors ............................ Report

Auto Power On ..................................... Disabled

Wakeup On LAN ..................................... Off

Power Management .................................. Disabled

ACPI .............................................. Off

Thermal Power-off ................................. Enabled

Asset Tag ......................................... ASSET TAG

to select

SPACE,+,- to change

ESC to exit

F1=Help

key functions

A-2

Dell Precision 610 Mini Tower Systems Service Manual

Time

Date

Resets time on computer’s internal clock.

Resets date on computer’s internal calendar.

Diskette Drive A

Diskette Drive B

Identifies type of diskette drives installed.

Option settings always match physical loca-

tions of drives in computer. Tape drives are not

reflected in these options.

Primary Drive n

Secondary Drive n

Identifies drives attached to the IDE1 and IDE2

connectors on system board. Each EIDE con-

nector supports two EIDE drives (Drive 0 and

Drive 1).

For EIDE hard-disk drives, the system provides

an automatic drive-type detect feature. To use

this feature, highlight the appropriate Drive

option, press <Enter>, and then type a (for

automatic).

If none of the supported drive types matches

the parameters of the new drive, enter param-

eters directly. To do so, highlight the appropri-

ate Drive option (Drive 0 or Drive 1), press

<Enter>, and then type u to display User1.

Press <Tab> to highlight each of the parameter

fields in succession, and enter the appropriate

number for each field.

NOTE: For EIDE devices such as EIDE

CD-ROM drives and EIDE tape drives that are

using the built-in EIDE controller, set the

appropriate Drive option to Auto.

Drive Sequence

Boot Sequence

System Memory

Reserved Memory

Lists installed adapter cards and devices in the

order they will be initialized.

Lists the order of the devices from which the

system attempts to boot.

Indicates the entire amount of installed mem-

ory detected in your system.

Designates a region of system board memory

that can be supplied by an expansion card.

This feature should not be enabled unless an

expansion card that requires special address-

ing is installed.

CPU Speed

Indicates processor speed at which system

boots—the processor’s rated speed or a

slower compatibility speed, which disables

cache.

System Setup Program

A-3

CPU ID(s)

CPU ID(s) provides the manufacturer’s identifi-

cation code for the installed processor(s).

Integrated Devices

System Security

Configures the devices integrated into the sys-

tem board.

Displays the current status of your system’s

password security feature and allows you to

assign and verify a new password.

Keyboard NumLock

Report Keyboard Errors

Auto Power On

Determines whether the system boots with

the keyboard’s Num Lock mode activated.

Enables or disables reporting of keyboard

errors during POST.

Allows you to set the day and time you want

the system to power on automatically. The

time uses the 24-hour format.

Wakeup On LAN

Wakeup On LAN determines whether the

Wakeup On LAN feature is set to Off, On, or

On (Integrated NIC). You must reboot your sys-

tem before a change takes effect.

Power

Management

With the Power Management option

enabled, DPMS monitors and most EIDE

drives automatically switch into low-power

mode during periods of system inactivity.

NOTE: Not all EIDE hard-disk drives support

this feature. Enabling this feature for a drive

that does not support it may cause the EIDE

drive to become inoperable until the system is

restarted and the Power Management option

is disabled.

ACPI

ACPI controls the Advanced Configuration and

Power Interface. When ACPI is toggled Off,

pressing the power button turns the system

completely off. When ACPI is not activated

(Off), IRQ 9 is available for use by expansion

cards.

A-4

Dell Precision 610 Mini Tower Systems Service Manual

Thermal Power-off

Asset Tag

This feature provides a safeguard in the event

that another shutdown utility, such as the Dell

AutoShutdown service, is not installed or fails

to shut the system down after an overtemper-

ature condition.

Displays the customer-programmable asset

tag number for the system if an asset tag

number has been assigned.

System Setup Program

A-5

A-6

Dell Precision 610 Mini Tower Systems Service Manual

,QGH[

computer (continued)

internal view, 1 -4

1XPEHUV

3.5-inch diskette drive assembly

removal, 4 -1 2

orientation, 1 -3

technical specifications, 1 -1 8

5.25-inch drive assembly removal,

4 -1 4

configuration jumpers, location, 1 -1 3,

4 -2 0

connectors

AGP, 1 -1 3, 4 -20

location on system board, 1 -1 3,

4 -2 0

advanced expansion subsyste m, 1 -4

audio controller, 1 -7

control panel removal, 4 -9

cover removal, 4 -3

<Ctrl><Alt><Del> key combination,

1 -2 1

<Ctrl><Alt><Enter> key

combination, 1 -2 1

back-panel features, 1 -4

battery

removal, 4 -2 7

socket, 1 -1 3, 4 -2 0

beep codes , 3 -1

DC power

BIOS jumper, 1 -1 5

cables, illustrated, 1 -1 1

connectors, 1 -9

distribution, 1 -1 2

voltage range s, 1 -9

boot routine, observing when

troubleshooting, 2 -3

Dell Diagnostics, 2 -7

DIMMs

about, 1 -1 3

installation, 4 -2 3

location on system board, 1 -1 3,

4 -2 0

cables

DC power, 1 -1 1

CD-ROM connector, 1 -1 3, 4 -2 0

CD-ROM drive removal, 4 -1 4

removal, 4 -2 3

diskette drive removal, 4 -1 3

computer

cover removal, 4 -3

front panel features, 1 -3

diskette drives

interface connector, 1 -1 3 , 4 -2 0

DMA channel assignments , 1 -1 7

Index

DREQ line assignments, 1 -1 7

drive hardware locations, 4 -1 1

I/O ports and connectors

illustrated, 1 -4

drives

location in chassis, 1 -6

types supporte d, 1 -2 0

location on system board, 1 -1 3,

4 -2 0

dual-processing capability, 1 -4

IDE1 connector, 1 -1 3, 4 -2 0

IDE2 connector, 1 -1 3, 4 -2 0

indicators, 1 -3

(

initialization, error mess ages, 3 -4

EIDE connectors, 1 -1 3, 4 -2 0

EIDE subsyste m, 1 -6 , 1 -7

eject button removal, 4 -6

error messages, list of, 3 -4

IRQ lines

assignments table, 1 -1 6

ISA expansion cards

about, 1 -5

connectors, located, 1 -1 3, 4 -2 0

expansion cards

about, 1 -4

connectors, located, 1 -1 3, 4 -2 0

removal, 4 -2 1

expansion subsystem, 1 -4

jumpers

BIOS jumper, 1 -1 5

location, 1 -1 4

external visual inspection, 2 -2

PSWD jumper, 1 -1 5

settings (table), 1 -1 5

speed jumpers, 1 -1 5, 4 -2 5

)

fan connector, 1 -1 3, 4 -2 0

fatal error messages, 3 -4

front bezel removal, 4 -5

front panel, 1 -3

key combination, to enter System

Setup program, A -1

front-panel insert removal, 4 -7

key combinations

<Ctrl><Alt><Del>, 1 -2 1

<Ctrl><Alt><Enter>, 1 -2 1

keyboard connector

location, 1 -1 3 , 4 -2 0

hard-disk drive access indicator, 1 -3

hard-disk drives

about, 1 -6

bracket removal, 4 -1 6

connectors, 1 -1 3, 4 -2 0

locations, 1 -6

line-in jack, 1 -1 3, 4 -20

line-out jack, 1 -1 3, 4 -2 0

removal, 4 -1 7

heat sink removal, 4 -2 4

help, getting, 2 -7

Dell Precision 610 Mini Tower Systems Service Manual

power supply

about, 1 -9

memory, m a i n , 1 -1 3

cable configuration, 1 -1 1

DC voltage ranges, 1 -9

illustrated, 1 -1 1

removal, 4 -1 8

messages, error, 3 -4

microphone jack, 1 -1 3, 4 -2 0

microprocessor

precautions, 4 -2

dual-processor capability, 1 -4

jumper settings for speed, 1 -1 5

removal, 4 -2 4

processor

jumper settings for speed, 4 -2 5

socket, 1 -1 3, 4 -2 0

PSWD jumper, 1 -1 5

microprocessor fan

removal, 4 -1 9

mouse connector

location, 1 -1 3, 4 -2 0

removing and replacing parts

mini tower chassis, 4 -1

reset button

location, 1 -3

removal, 4 -6

NIC

about, 1 -7

location, 1 -1 3, 4 -2 0

resource conflicts

eliminating, 2 -6

PANEL connector, 1 -1 3 , 4 -2 0

SCSI support, 1 -7

parallel port connector

location, 1 -1 3, 4 -2 0

SEC cartridge

removal, 4 -2 4

parts removal and replacement, 4 -1

service-related information, 1 -9

PCI expansion cards

about, 1 -5

SMART

capability, 1 -2

connectors, located, 1 -1 3, 4 -2 0

sockets

PCI video card, 1 -7

battery, 1 -1 3, 4 -2 0

DIMM, 1 -1 3 , 4 -2 0, 4 -2 3

Plug and Play expansion cards, 1 -4

POST beep codes, 3 -1 , 3 -2

speaker removal, 4 -1 0

specifications, 1 -1 8

power button

location, 1 -3

removal, 4 -6

specifications, technical, 1 -1 8

speed jumpers

power distribution diagram, 1 -1 2

power indicator, 1 -3

setting, 1 -1 5, 4 -2 5

subsystems

dual-interface EIDE, 1-6 , 1 -7

main memory, 1 -1 3

power input connector s , 1 -1 3 , 4 -2 0

Index

system battery removal, 4 -2 7

tools, recommended, 4 -1

system board

troubleshooting

component removal, 4 -2 0

illustrated, 1 -1 3

removal, 4 -2 8

boot routine, observing, 2 -3

external visual inspection, 2 -2

initial procedures, 2 -1

initial user contact, 2 -1

internal visual inspection, 2 -5

system board jumpers

illustrated, 1 -1 4

settings, 1 -1 5

system error messages, list of, 3 -4

system feature s, 1 -2

upgrade options

drive s, 1 -6

system power supply

about, 1 -9

removal, 4 -1 8

USB

about, 1 -8

connectors, location, 1 -1 3, 4 -2 0

System Setup program

about, A-1

key combination to enter, A-1

options, A-3

user contact, initial, 2 -1

screens, A-2

video subsystem, 1 -7

visual inspection

external, 2 -2

internal, 2 -5

tape drives

interface connector, 1 -1 3, 4 -2 0

removal, 4 -1 4

technical specifications, 1 -1 8

terminator card removal, 4 -2 6

thermal protection, 1 -8

Wakeup On LAN card connector,

1 -1 3, 4 -2 0

Dell Precision 610 Mini Tower Systems Service Manual

3ULQWHGꢀLQꢀWKHꢀ8ꢄ6ꢄ$ꢄ

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Dell Information Development

Postscript Imaging Specs

JOB TITLE:

Dell Precision WorkStation 610 Mini Tower Systems Service Manual

(Volcano)

LANGUAGES:

English

PART NUMBER:

PREPARED BY:

CONTACT:

9156C

Gloria Salinas

Donna Moore

Sue Farr

512-728-3439

512-728-3932

EMAIL ADDRESS:

Donna_Moore@dell.com

Sue_Farr@dell.com

VENDOR:

DATE:

Hart Graphics

6/05/98

COMPUTER SOURCE:

APPLICATION SOFTWARE:

POSTSCRIPT FILES:

POSTCRIPT DRIVER USED:

COLOR SEPARATED FILES:

COMPRESSED & TESTED:

PAGE SIZE:

Dell PC

FrameMaker

Yes

Version 5.5.2

Linotronic 330

Yes

8.5 x 11 inches

Portrait

133 lpi

PAGE ORIENTATION:

LINE SCREEN:

TRANSPORT MEDIA:

HALFTONES/SCREENS/

DUOTONES:

ZIP Diskette

COLOR(S):

Text - Black

COLOR MARKUP PROVIDED:

Continued on Back

For questions or problems with files contact:

Donna Moore - Graphic Development

Dell Computer Corporation (512) 728-3439

Dell Information Development

Postscript Imaging Specs

FILE NAME(S) & PAGE

COUNT:

Section

Filename

Page Count

Frontcover:

Title page:

Toc:

9156Cfc0.ps

9156Ctp0.ps

9156Ctc0.ps

9156Cc10.ps

9156Cc20.ps

9156Cc30.ps

9156Cc40.ps

9156Caa0.ps

9156Cix0.ps

9156Cbc0.ps

2(Incl. Blank Back)

Ch1:

Ch2:

Ch3:

Ch4:

AppA:

Index:

Backcover:

2(Incl. Blank Back)

TOTAL PAGE COUNT:

SPECIAL INSTRUCTIONS:

Add blank pages needed to complete signatures.

For questions or problems with files contact:

Donna Moore - Graphic Development

Dell Computer Corporation (512) 728-3439

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