Compaq Personal Computer 243850 002 User Manual

b
Hardware Reference Guide  
Compaq Evo Desktop Family: Desktop  
Models  
Document Part Number: 243850-002  
January 2002  
This book provides basic information for upgrading this series of  
computers.  
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Drive Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–12  
Removing a Drive from the Drive Bay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–13  
Installing Additional Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–14  
Installing a CD-ROM, DVD-ROM, or other Removable Storage Device . . . . . . 2–15  
Installing a Hard Drive into a 3.5-inch Drive Bay . . . . . . . . . . . . . . . . . . . . . . . . 2–16  
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iii  
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Contents  
CD-ROM Drive Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2  
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2  
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2  
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–2  
Shipping Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F–3  
iv  
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1
Product Features  
Standard Configuration Features  
The Compaq Evo™ Desktop features may vary depending on your  
model. For a complete listing of the hardware and software installed  
in your computer, run Compaq Diagnostics for Windows or the  
INSPECT utility (available on some models). Instructions for using  
these utilities are provided in the Troubleshooting Guide on the  
Reference Library CD.  
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1–1  
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Product Features  
Front Panel Components  
Front Panel Components  
1
2
3
Diskette Drive Activity Light  
Power Button  
6
7
8
Hard Drive Activity Light  
Microphone Connector (optional)  
Diskette Eject Button  
Universal Serial Bus (USB)  
(optional)  
4
5
CD-ROM Drive Busy Indicator  
CD-ROM Eject Button  
9
-
Stereo Headphone Jack (optional)  
Power On Light  
1–2  
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Product Features  
Rear Panel Components  
Rear Panel Components  
1
2
3
4
5
6
Power Cord Connector  
Voltage Select Switch  
Keyboard Connector  
Mouse Connector  
7
8
9
-
q
Parallel Port Connector  
Microphone Connector  
Line-In Audio  
Line-Out Audio  
Universal Serial Bus (USB)  
RJ-45 Connector  
Serial Connector  
Å WARNING: To reduce the risk of electric shock or damage to the equipment:  
Do not disable the power supply cord grounding plug. The grounding  
plug is an important safety feature.  
Plug the power cord into a grounded (earthed) electrical outlet that  
is easily accessible at all times.  
Disconnect the power from the computer by unplugging the power  
cord from either the electrical outlet or the computer.  
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Product Features  
Easy Access Keyboard  
Compaq Easy Access Keyboard Components  
1
2
Ctrl Key  
Used in combination with another key; its effect  
depends on the application software you are using.  
Windows Logo Key*  
Used to open the Start menu in Microsoft Windows.  
Used in combination with other keys to perform other  
functions.  
3
4
Alt Key  
Used in combination with another key; its effect  
depends on the application software you are using.  
Application Key*  
Used (like the right mouse button) to open pop-up  
menus in a Microsoft Office application. May perform  
other functions in other software applications.  
5
Internet Keys  
Provides quick access to specific Internet destinations.  
1–4  
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Product Features  
Compaq Easy Access Keyboard Components (Continued)  
6
Editing Keys  
Includes the following: Insert, Home, Page Up, Delete,  
End, and Page Down.  
Holding down Ctrl and Alt while pressing Delete  
allows you to restart your computer.  
7
8
9
Num Lock light  
Caps Lock light  
Scroll Lock light  
Indicates whether the Num Lock feature is on or off.  
Indicates whether the Caps Lock feature is on or off.  
Indicates whether the Scroll Lock feature is on or off.  
*Keys available in select geographic regions.  
Easy Access Software  
Your Easy Access Keyboard Buttons are programmed to default  
assignments. The pre installed Easy Access Software allows you to  
reprogram the Easy Access Buttons to reflect your personal  
preferences. The buttons can be reprogrammed to any program or  
service of your choice or to any Web site (URL).  
Reprogramming the Easy Access Buttons  
The Easy Access Keyboard icon is located on the Windows desktop  
status bar. Refer to the Readme-user.txt file for instructions about  
reprogramming the Easy Access Buttons.  
Locking and Unlocking the Easy Access Buttons  
The System Administrator can lock and unlock the Easy Access  
Buttons. Once locked, the buttons can only be reprogrammed by  
modifying the .bcf file. For administrative privileges, which require  
control of the Easy Access Button destinations, refer to the  
Readme-admin.txt file.  
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Product Features  
Easy Access Paper Icon Insert  
The paper icon insert functions as a visual aid in identifying the  
programmed destination of each Easy Access Button. Whenever you  
reprogram an Easy Access Button, use the Paper Insert Template  
document to select and print an icon that reflects the new button  
assignment. The Paper Insert Template.doc is installed, by default,  
under C:\Program files\Compaq\Easy Access Keyboard.  
For proper alignment, the spacing around the icons may require  
adjustment.  
Windows Logo Key  
Use the Windows Logo Key in combination with other keys to  
perform certain functions available in the Windows operating  
systems.  
Windows Logo Key + F1  
Displays a pop-up menu for the selected object  
Activates the next Taskbar button  
Launches Explore My Computer  
Launches Find Document  
Windows Logo Key + Tab  
Windows Logo Key + e  
Windows Logo Key + f  
Windows Logo Key + Ctrl + f  
Windows Logo Key + m  
Shift + Windows Logo Key + m  
Windows Logo Key + r  
Launches Find Computer  
Minimizes all open applications  
Undoes Minimize All  
Displays the Run dialog box  
Special Mouse Functions  
Most software applications support the use of a mouse. The functions  
assigned to each mouse button depend on the software applications  
you are using.  
1–6  
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Product Features  
Serial Number Location  
Each computer has a unique serial number which may be located on  
the cover top 1or the rear panel 2of the computer. Keep this number  
available for use when contacting Compaq customer service for  
assistance.  
Serial Number Location  
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Product Features  
1–8  
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2
Hardware Upgrades  
Serviceability Features  
Your computer includes features that make it easier to upgrade and  
service.  
Installation Sequence  
It is very important that you follow this sequence of steps to ensure  
the proper installation of any optional equipment. For more  
information about Computer Setup, refer to the Computer Setup  
Guide.  
1. If the computer is already on, turn it off and disconnect the power  
cord from the wall outlet.  
WARNING: To reduce the risk of personal injury from electrical shock  
and/or hot surfaces, be sure to disconnect the power cord from the wall  
outlet, and allow the internal system components to cool before  
touching.  
Å
WARNING: To reduce the risk of electrical shock, fire, or damage to the  
equipment, do not plug telecommunications/telephone connectors into  
the network interface controller (NIC) receptacles.  
Å
Ä
CAUTION: Static electricity can damage the electrical components of  
the computer or optional equipment. Before beginning these  
procedures, ensure that you are discharged of static electricity by briefly  
touching a grounded metal object. See Appendix E, “Electrostatic  
Discharge,” for more information.  
2. Open the computer by removing its outside cover. See the  
procedures for removing the computer cover.  
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Hardware Upgrades  
3. Install any optional equipment. See the applicable sections of this  
guide or to the documentation provided with the optional  
equipment for instructions.  
4. Replace the computer cover.  
5. Turn on the monitor, computer, and any devices you want to test.  
6. Reconfigure the computer, if necessary. Refer to the Computer  
Setup Guide for instructions about using Computer Setup.  
2–2  
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Removing the Computer Cover  
To remove the computer cover:  
1. Shut down the operating system properly, then power off the  
computer and any external devices.  
2. Disconnect the power cord from the power outlet, and disconnect  
any external devices.  
CAUTION: Before removing the computer cover, ensure that the  
computer is turned off and that the power cord is disconnected from the  
electrical outlet.  
Ä
3. Loosen the two captive thumbscrews that secure the cover to the  
computer chassis.  
4. Slide the cover back about 1 inch (2.5 cm), then lift it up and off  
the unit.  
Removing the Computer Cover  
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Hardware Upgrades  
Replacing the Computer Cover  
To replace the computer cover:  
1. Hold the cover over the chassis, then rest the guide tabs located  
inside the cover on the diagonal ramps at the rear of the chassis.  
2. Slide the cover along the ramps and into place on the chassis.  
3. Tighten the two captive thumbscrews.  
Replacing the Computer Cover  
2–4  
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Hardware Upgrades  
Removing the Front Bezel  
1. Shut down the operating system properly, then power off the  
computer and any external devices. Disconnect the power cord  
from the power outlet and disconnect any external devices.  
2. Remove the computer cover.  
3. Pull up on the two release tabs, then rotate the front bezel away  
from the chassis to release it.  
Removing the Front Bezel  
When replacing the front bezel, ensure that the bottom hinge points  
are properly placed in the chassis before rotating the front bezel back  
into its original position.  
Removing Bezel Blanks  
1. Shut down the operating system properly, then power off the  
computer and any external devices. Disconnect the power cord  
from the power outlet and disconnect any external devices.  
2. Remove the computer cover.  
3. Remove the front bezel.  
4. Gently pinch the release mechanism, then remove the desired  
bezel blank.  
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Hardware Upgrades  
Installing Additional Memory  
The computer comes with Synchronous dynamic random access  
memory (SDRAM) dual inline memory modules (DIMMs).  
DIMMs  
The memory sockets on the Intel 815E and 845 chipset-based system  
board can be populated with industry-standard DIMMs. These  
memory module slots are populated with at least one preinstalled  
memory module. To achieve the maximum memory support, you may  
be required to replace the preinstalled DIMM with a higher capacity  
DIMM.  
For proper system operation, the DIMMs must be industry-standard  
168-pin, PC133- compliant SDRAM DIMMs, depending on the  
model. The SDRAM DIMMs must support CAS Latency 2 or 3  
(CL = 2 or CL = 3). They must also contain the mandatory Joint  
Electronic Device Engineering Council (JEDEC) Serial Presence  
Detect (SPD) information. DIMMs constructed with x4 SDRAM are  
not supported; the system will not start using unsupported DIMMs.  
CAUTION: Some models support ECC memory and some support  
non-ECC memory. For those systems that do support ECC, Compaq  
does not support mixing ECC and non-ECC memory. Doing so will  
cause the system to blink the NUMLOCK LED on the keyboard  
continuously and, if a speaker is installed in the system, there will be a  
short beep followed by 2 long beeps. In addition, the system will not  
boot the operating system.  
Ä
2–6  
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Installing DIMMs  
CAUTION: Your memory module sockets have gold metal contacts.  
Ä
When upgrading your memory, it is important to use memory modules  
with gold metal contacts to prevent corrosion and/or oxidation resulting  
from having incompatible metals in contact with each other.  
CAUTION: Static electricity can damage the electronic components of  
the computer or optional cards. Before beginning these procedures,  
ensure that you are discharged of static electricity by briefly touching a  
grounded metal object. Refer to Appendix E, "Electrostatic Discharge,"  
for more information.  
Ä
Ä
CAUTION: When handling a memory module, be careful not to touch  
any of the contacts. Doing so may damage the module.  
1. Shut down the operating system properly, then power off the  
computer and any external devices, then disconnect the power  
cord from the power outlet.  
2. Remove the cover and locate the memory module sockets.  
WARNING: To reduce risk of personal injury from hot surfaces, allow  
the internal system components to cool before touching.  
Å
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Hardware Upgrades  
3. Open both latches of the memory module socket 1, and insert the  
memory module into the socket 2.  
Installing a DIMM  
Begin by installing a module into the socket nearest the  
preinstalled module, and install the modules following the  
numerical order of the sockets.  
A memory module can be installed in only one way. Match the  
notch on the module with the tab on the memory socket. Push the  
module down into the socket, ensuring that the module is fully  
inserted and properly seated 3.  
2–8  
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Hardware Upgrades  
Installing or Removing an Expansion Card  
Removing an Expansion Slot Cover  
1. Shut down the operating system properly, then power off the  
computer and any external devices, then disconnect the power  
cord from the power outlet.  
2. Remove the computer cover and locate the correct vacant slot in  
the computer chassis.  
3. Remove the screw securing the slot cover, then remove the  
expansion slot cover from the slot as illustrated.  
Removing an Expansion Slot Cover  
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Removing or Installing an Expansion Card  
1. Shut down the operating system properly, then power off the  
computer and any external devices, then disconnect the power  
cord from the power outlet.  
2. Remove the computer cover.  
3. If installing an expansion card, skip to step 8.  
4. To remove an installed expansion card, disconnect any cables  
attached to the expansion card.  
5. Remove the screw at the side of the expansion slot.  
6. Hold the card at each end and carefully rock it back and forth  
until the connectors pull free from the slot. Be sure not to scrape  
the card against other components.  
Removing an Expansion Card  
2–10  
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Hardware Upgrades  
7. Store the card in anti-static packaging.  
8. Install an expansion slot cover or new expansion card to close the  
open slot.  
9. If not installing a new expansion card, skip to step 11.  
10. To install a new expansion card in an open slot, remove the  
expansion slot cover.  
11. Slide the expansion card into the expansion slot and press it  
firmly into place.  
When you install an expansion card, make sure you press firmly on  
the card so that the whole connector seats properly in the expansion  
card slot.  
12. Replace the screw at the side of the expansion slot.  
13. Connect external cables to the installed card, if needed. Connect  
internal cables to the system board, if needed.  
14. Replace the computer cover.  
15. Reconfigure the computer, if necessary.  
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Drive Positions  
1
One standard 3.5-inch, 1.44-MB diskette drive mounted  
with a drive adapter in the 5.25-inch, one-third height bay  
(labeled as drive bay 3)  
2 3  
4 5  
Two internal 3.5-inch, one-third height bays for hard  
drives (labeled as drive bays 4 and 5)  
Two 5.25-inch, half-height bays for optional drives  
(labeled as drive bays 1 and 2)  
To verify the type and size of the storage devices installed in  
your computer, run Compaq Computer Setup. Refer to the Computer  
Setup Guide for more information.  
Drive bay numbers are stamped on the chassis, behind the front bezel.  
2–12  
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Removing a Drive from the Drive Bay  
1. Shut down the operating system properly, then power off the  
computer, disconnect the power cord from the power outlet, and  
remove the computer cover.  
2. Remove the front bezel.  
3. Disconnect the drive power and signal cables and, if it is a  
CD-ROM or DVD-ROM drive, disconnect the audio connector.  
4. If removing a hard drive, lift up on the power switch bracket, then  
rotate down to gain access to the drive bay.  
5. Press the drivelock mechanism to unlock the drive in the  
drive bay.  
6. While pressing the drivelock 1, pull the drive out of the  
drive bay 2.  
Removing a Drive from the Drive Bay  
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Removing a Drive from the Drive Bay  
7. Remove the drive from the drive bay and store in anti-static  
packaging.  
Installing Additional Drives  
The computer supports up to five drives which may be installed in  
various configurations.  
When installing additional drives, follow these guidelines:  
For optimal performance, connect hard drives to the primary  
controller. Connect expansion devices, such as CD-ROM, IDE  
tape, and diskette drives to the secondary controller.  
You may install either a third-height or a half-height drive into a  
half-height bay.  
You must install guide screws to ensure the drive will line up  
correctly in the drive cage. Compaq has provided extra guide  
screws, installed in the front of the computer chassis, behind the  
front bezel. Some options use metric hardware. The  
Compaq-supplied metric screws are black.  
2–14  
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Ä CAUTION: To prevent loss of work and damage to the computer or drive:  
If you are inserting or removing a hard drive, shut down the  
operating system properly, then turn off the computer. Do not  
remove a hard drive while the computer is on or in standby mode.  
Before handling a drive, ensure that you are discharged of static  
electricity. While handling a drive, avoid touching the connector. For  
more information about preventing electrostatic damage, refer to  
Appendix E, "Electrostatic Discharge."  
le:  
Handle a drive carefully, do not drop it.  
Do not use excessive force when inserting a drive.  
Avoid exposing a hard drive to liquids, temperature extremes, or  
products that have magnetic fields such as monitors or speakers.  
Installing a CD-ROM, DVD-ROM, or other Removable Storage  
Device  
1. Shut down the operating system properly, then turn off the  
computer and any external devices, disconnect the power cord  
from the power outlet, and remove the computer cover.  
2. Remove the front bezel. See “Removing the Front Bezel.”  
3. Install four guide screws, two guide screws on each side of the  
drive.  
Some options use metric hardware. Extra guide screws are provided  
on the front of the chassis, under the front bezel. The  
Compaq-supplied metric screws are black.  
4. Install the drive in the desired drive bay by sliding it into the front  
of the drive cage; the drivelock automatically secures the drive in  
the bay.  
Be sure the guide screws line up with the guide slots in the drive cage.  
5. If it is a CD-ROM or DVD-ROM drive and if analog audio is  
preferred to digital audio, connect the audio cable 1. The other  
end of the audio cable 1should be connected to the embedded  
audio connector on the system board.  
6. Connect the signal 2and drive power 3cables.  
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Connecting Cables  
Remove the appropriate bezel blank from the front bezel. See the  
section “Removing Bezel Blanks” for more information.  
7. Replace the front bezel.  
8. Replace the computer cover.  
9. Reconfigure the computer, if necessary.  
Installing a Hard Drive into a 3.5-inch Drive Bay  
Compaq does not support mixing IDE and SCSI hard drives in the  
same system. If you are replacing a hard drive in bay 4 or bay 5, it  
should be of the same type.  
To install a hard drive in a 3.5-inch drive bay:  
1. Shut down the operating system properly, then power off the  
computer and any external drives, disconnect the power cord  
from the power outlet, and remove the computer cover.  
2. Remove the front bezel. See, “Removing the Front Bezel.”  
2–16  
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3. Lift up on the power switch bracket, then rotate down to gain  
access to the drive bay.  
Removing the Power Switch Bracket  
4. Insert the hard drive into the bay from the front of the chassis.  
Push it in until it locks into place.  
Be sure that the power switch LED cables remain under the hard  
drive.  
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5. Connect the signal 1and power 2cables to the hard drive.  
Connecting Cables  
6. Connect the opposite end of the cables to the appropriate system  
board connector.  
7. Lift the power switch bracket up and into position on the front of  
the chassis.  
8. Replace the front bezel.  
9. Replace the computer cover.  
10. Reconfigure the computer, if necessary.  
2–18  
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A
Specifications  
3
Compaq Evo Desktop (Intel Pentium 4)  
Dimensions  
5.72 in  
15.25 in  
17.90 in  
14.53 cm  
38.74 cm  
45.47 cm  
Height  
Width  
Depth  
Approximate Weight  
25 lb  
11.34 kg  
45.5 kg  
Weight Supported (maximum distributed load)  
Temperature Range  
100.0 lb  
50° to 95°F  
-4° to 140°F  
10° to 35°C  
-20° to 60°C  
Operating  
Nonoperating  
Relative Humidity (noncondensing)  
Operating  
Nonoperating  
20% to 80%  
10% to 90%  
20% to 80%  
10% to 90%  
Maximum Altitude (unpressurized)  
Operating  
Nonoperating  
10,000 ft  
30,000 ft  
3048 m  
9144 m  
Power Supply  
Operating Voltage Range  
Rated Voltage Range*  
Rated Line Frequency  
90-132 VAC  
100-127 VAC  
50-60 Hz  
180-264 VAC  
200-240 VAC  
50-60 Hz  
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Specifications  
Compaq Evo Desktop (Intel Pentium 4) (Continued)  
Power Output  
235 W  
4 A  
235 W  
2 A  
Rated Input Current (maximum)*  
Heat Dissipation  
Maximum  
Nominal  
1234 BTU/hr  
617 BTU/hr  
311 kg-cal/hr  
155 kg-cal/hr  
*This system utilizes a full-ranging, active power factor corrected power supply to greatly reduce the  
input current amplitude and harmonics. No input voltage select switch is required.  
Compaq Evo Desktop (Intel Pentium III/Celeron)  
Dimensions  
15.25 in  
5.72 in  
17.90 in  
38.74 cm  
14.52 cm  
45.47 cm  
Height  
Width  
Depth  
Approximate Weight  
25 lb  
11.34 kg  
45.5 kg  
Weight Supported (maximum distributed load)  
100.0 lb  
Temperature Range  
50° to 95°F  
-4° to 140°F  
10° to 35°C  
-20° to 60°C  
Operating  
Nonoperating  
Relative Humidity (noncondensing)  
Operating  
Nonoperating  
20% to 80%  
10% to 90%  
20% to 80%  
10% to 90%  
Maximum Altitude (unpressurized)  
Operating  
Nonoperating  
10,000 ft  
30,000 ft  
3048 m  
9144 m  
A–2  
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Specifications  
Compaq Evo Desktop (Intel Pentium III/Celeron) (Continued)  
Power Supply  
Operating Voltage Range  
90-132 VAC  
180-264 VAC  
200-240 VAC  
50-60 Hz  
Rated Voltage Range*  
100-127 VAC  
Rated Line Frequency  
50-60 Hz  
Power Output  
145 W  
145 W  
5 A  
Rated Input Current (maximum)*  
2.5 A  
Heat Dissipation  
Maximum  
Nominal  
192 kg-cal/hr  
96 kg-cal/hr  
760 BTU/hr  
380 BTU/hr  
*This system utilizes a full-ranging, active power factor corrected power supply to greatly reduce the  
input current amplitude and harmonics. No input voltage select switch is required.  
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Specifications  
A–4  
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B
Hard Drive Installation Guidelines  
Using the Cable-Select Feature with Ultra ATA Devices  
Optional drives are available from Compaq in kits that include a  
special drive cable. The configuration of the drive employs a  
cable-select feature that identifies the drive as device 0 (primary  
drive) or device 1 (secondary drive).  
Device 1 is the drive connected to the cable’s middle connector.  
Device 0 is the drive connected to the cable’s end connector (applies  
only to 80-conductor ATA cables). See “Guidelines for Installing  
Ultra ATA Devices” in this appendix for an example of an Ultra  
ATA cable.  
Compaq hard drives ship with jumpers preset to cable-select mode;  
therefore, no jumper setting changes on the existing or optional drives  
are required. If you purchase a third-party hard drive, refer to the  
documentation included with the kit to ensure proper installation and  
configuration of cables.  
If installing a second device on the primary controller, you must use  
an 80-conductor Ultra ATA cable for optimal performance. This cable  
is standard on select models.  
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Hard Drive Installation Guidelines  
Guidelines for Installing Ultra ATA Devices  
When installing additional Ultra ATA drives, follow these guidelines:  
If using multiple Ultra ATA devices, Compaq recommends that  
the devices be split between the primary and secondary Ultra  
ATA channels for optimum performance. Use an additional  
Ultra ATA cable to connect the additional device to the system  
board.  
80-conductor Ultra ATA cable:  
18 inches maximum total length, 80-conductor cable with  
maximum spacing of 6 inches between Device 0 and  
Device 1.  
80-Conductor Ultra ATA Cable  
1
2
3
Device 0 (master drive) connector  
Device 1 (slave drive) connector  
System board connector  
For optimal performance, connect hard drives to the primary  
controller. Connect expansion devices, such as ATA CD-ROM  
and DVD-ROM drives, tape drives, and diskette drives, to the  
secondary controller.  
Install either a third-height or a half-height drive into a  
half-height bay.  
Install guide screws to ensure that the drive lines up correctly in  
the drive cage. Compaq has provided extra guide screws installed  
in the front of the computer chassis behind the front bezel. Some  
options use M3 metric hardware. Compaq supplied metric screws  
are black.  
If only one device is connected to a cable, that device must be  
attached to the end (Device 0) connector.  
B–2  
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Hard Drive Installation Guidelines  
SCSI Devices  
This section contains information relating to SCSI device guidelines  
and installation.  
Guidelines for Using SCSI Devices  
When installing and operating SCSI devices, you must follow these  
guidelines:  
A single Ultra SCSI controller supports up to seven SCSI devices  
per channel.  
Each Wide-Ultra SCSI, Ultra-Wide SCSI, Wide Ultra2 SCSI,  
Ultra 320 SCSI, or Ultra 160 SCSI controller supports up to  
15 SCSI devices per channel.  
If using multiple SCSI devices, Compaq recommends that the  
devices be split between Channel A and Channel B, if available,  
for optimum performance.  
SCSI cable recommendation:  
53 inches maximum length twisted-pair, LVD cable with  
built-in terminator, maximum of 5 drives with a minimum  
driving spacing of 5.25 inches.  
The SCSI controller requires a unique SCSI ID (0-7 or 8-15) for  
each SCSI device installed. The controller identifies a SCSI  
device by its SCSI ID number rather than by its location. Moving  
a SCSI device from one position to another on the SCSI chain  
does not affect communication between the controller and the  
device. The reserved and available SCSI ID numbers for SCSI  
devices are:  
0—reserved for the primary hard drive  
7—reserved for the controller  
1 through 6 and 8 through 15—available for all other  
SCSI devices  
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Hard Drive Installation Guidelines  
Every SCSI chain or circuit must be terminated (closed) at both  
ends. Termination can be accomplished through one of the  
following methods:  
Using a cable with a built-in terminator. This cable was  
shipped with your computer.  
Using a cable with a terminating resistor plug in the last  
connector.  
Connecting a SCSI device with its termination enabled into  
the last connector.  
Connecting an external SCSI device with its termination  
enabled to the external SCSI connector on the rear panel of  
the computer.  
Turn on all external SCSI devices before turning on the power to  
the computer. This action enables the SCSI controller to  
recognize the external devices.  
The system accommodates a combination of internal and external  
SCSI devices, such as hard drives, tape drives, and CD-ROM  
drives.  
Compaq does not recommend mixing different-width SCSI  
devices on the same SCSI chain or on the same SCSI channel.  
Mixing devices of different widths on the same chain or channel  
will always result in the data transfer rate of the slowest device in  
that chain. It is acceptable to mix Wide-Ultra2, Ultra 160, and  
Ultra 320 devices on a single channel. Do not put narrow devices  
on a channel with any device type other than another narrow  
device.  
For additional information about optional SCSI devices, refer to the  
documentation included with the device or contact your Compaq  
authorized dealer, reseller, or service provider.  
CAUTION: Do not route cables near the air intake to the power supply.  
Cables routed in this manner can block airflow to the power supply,  
causing it to overheat.  
Ä
B–4  
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Hard Drive Installation Guidelines  
Guidelines for Installing Optional SCSI Devices  
If you mix Ultra ATA and SCSI hard drives in the same system, the  
Ultra ATA drive will be the boot drive unless the boot order is  
changed in the F10 Setup.  
When replacing a hard drive, the replacement drive should be of the  
same type as the drive being removed. If you are replacing an Ultra  
ATA hard drive with a SCSI hard drive, you will need a multimode  
Low Voltage Differential (LVD) SCSI cable option kit.  
If only one SCSI hard drive is used, it should be installed in bay 4 if  
your computer has four or more bays.  
Before installing a SCSI device:  
Verify the SCSI ID of the drive and, if necessary, set the SCSI ID  
to a unique number. See “Guidelines for Using SCSI Devices” in  
this appendix or refer to the documentation included with the  
device.  
Determine if the device requires that termination be enabled or  
disabled. Set the termination if necessary. See “Using a SCSI  
Cable” in this appendix or refer to the documentation included  
with the device.  
Some devices may not have terminating jumpers on the device.  
Termination on these devices must be achieved with terminated cable.  
Turn on an external SCSI device before turning on power to the  
computer. This enables the system board controller to recognize the  
external SCSI device and automatically reset. When an external SCSI  
device is connected to the external SCSI connector on the rear panel  
of the computer, that device becomes the end of the SCSI chain and  
must be terminated.  
SCSI Controllers  
Select models such as workstations ship with an integrated single  
channel Ultra 160 SCSI controller with an internal connector on the  
system board.  
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Hard Drive Installation Guidelines  
SCSI Cables  
The front drive bays are available for installing or connecting mass  
storage SCSI devices.  
Using a SCSI Cable  
Select models ship with a multimode SCSI cable that supports  
Low Voltage Differential (LVD) or single-ended devices. The cable  
accommodates up to three SCSI devices in the front drive bay area  
(UATA models do not have the SCSI cable).  
Five-Device SCSI Cable with Terminator  
The cable that shipped with your computer may look different than  
the one illustrated (a five-device cable).  
For additional information about installing optional SCSI devices,  
refer to the documentation included with the device option kit or  
contact your Compaq authorized dealer, reseller, or service provider.  
Using SCSISelect with SCSI Devices  
The SCSI host adapter includes the SCSISelect utility to configure the  
host adapter and to run SCSI disk utilities. To run the SCSISelect  
utility:  
In Post Messages Enabled mode: Press Ctrl+A when the  
Press <Ctrl><A> for SCSISelect Utility message displays  
during POST.  
In Post Messages Disabled mode: When the Compaq logo screen  
displays, press any key to exit the logo screen. Immediately after  
exiting the logo screen, press Ctrl+A to access the SCSISelect  
utility.  
B–6  
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Hard Drive Installation Guidelines  
A menu displays with the following options:  
Configure/View Host Adapter Settings  
SCSI Bus Interface Definitions  
Host Adapter SCSI ID  
SCSI Parity Checking  
Host Adapter SCSI Termination  
Additional Options  
Boot Device Options  
SCSI Device Configuration  
Advanced Configuration Options  
SCSI Disk Utilities  
Lists all SCSI devices and SCSI ID numbers  
For additional information about configuring POST message  
display status, refer to the Computer Setup Guide on the Reference  
Library CD.  
Choosing the Quiet Drive Options  
The Quiet Drive is an optional feature and may or may not be  
included on your computer.  
If this computer is equipped with a Quiet Drive or, if you choose to  
install a Quiet Drive, you may configure the drive to operate in Quiet  
mode or Performance mode (default). When idle, the Quiet Drive  
produces an acoustic noise level approximately 4 decibels (dB) lower  
than that of a standard drive. When configured to operate in Quiet  
mode, the Quiet Drive reads and writes data at an acoustic noise level  
approximately 7 dB lower than that of a standard drive.  
When configured to operate in Quiet mode, the drive will not operate  
at maximum performance levels. For maximum drive performance,  
set the drive to operate in Performance mode.  
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Hard Drive Installation Guidelines  
To determine if your computer contains a Quiet Drive or to activate  
Quiet mode, complete the following steps:  
1. Turn on or restart the computer. If you are in Windows, click Start  
> Shut Down > Restart the Computer.  
2. When the F10 = Setup message displays in the lower-right corner  
of the screen, press the F10 key.  
If you do not press the F10 key while the message is displayed, you  
must restart the computer to access the utility.  
3. Select your language from the list and press the Enter key.  
4. A choice of five headings displays in the Computer Setup  
Utilities menu. Using the arrow keys or the Tab key, select  
Storage > Device Configuration.  
5. Select the drive from the list of devices. Press the Enter key.  
6. Select Quiet Drive > Quiet (Performance is the factory-set  
default.)  
If the Quiet Drive option is not displayed, your computer does not  
contain a Quiet drive.  
7. To apply and save changes, select File > Save Changes.  
B–8  
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C
Battery Replacement  
The battery that comes with your computer provides power to the  
real-time clock and has a minimum lifetime of about three years.  
When replacing the battery, use a battery equivalent to the battery  
originally installed on your computer. Your computer comes with a  
3-volt lithium coin cell battery.  
The lifetime of the lithium battery can be extended by plugging the  
computer into a live AC wall socket. The lithium battery is only used  
when the computer is NOT connected to AC power.  
WARNING: Your computer contains an internal lithium manganese dioxide  
battery. There is a risk of fire and burns if the battery is not handled properly.  
To reduce the risk of personal injury:  
Å
Do not attempt to recharge the battery.  
Do not expose to temperatures higher than 60°C (140ºF).  
Do not disassemble, crush, puncture, short external contacts, or  
dispose of in fire or water.  
Replace the battery only with the Compaq spare designated for this  
product.  
CAUTION: Before replacing the battery, it is important to back up the  
computer CMOS settings. When the battery is removed or replaced, the  
CMOS settings will be cleared. Refer to the Troubleshooting Guide for  
information on backing up the CMOS settings.  
Ä
N
Batteries, battery packs, and accumulators should not be disposed of  
together with the general household waste. In order to forward them to  
recycling or proper disposal, please use the public collection system or  
return them to Compaq, their authorized partners, or their agents.  
Hardware Reference Guide  
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Battery Replacement  
CAUTION: Static electricity can damage the electronic components of  
the computer or optional equipment. Before beginning these  
procedures, ensure that you are discharged of static electricity by briefly  
touching a grounded metal object.  
Ä
1. If you have locked the Smart Cover Lock, use Computer Setup to  
unlock the lock and disable the Smart Cover Sensor.  
2. Shut down the operating system properly, turn off the computer  
and any external devices, disconnect the power cord from the  
electrical outlet, and remove the computer cover or access panel.  
It may be necessary to remove an expansion card to gain access to the  
battery.  
3. Locate the battery and battery holder on the system board.  
4. Depending on the type of battery holder on your system board,  
complete the following instructions to replace the battery.  
Type 1  
a. Lift the battery out of its holder.  
Removing a Coin Cell Battery (Type 1)  
C–2  
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Battery Replacement  
b. Slide the replacement battery into position, positive side up.  
The battery holder automatically secures the battery in the proper  
position.  
Type 2  
a. To release the battery from its holder, squeeze the metal  
clamp that extends above one edge of the battery.  
b. When the battery pops up, lift it out.  
Removing a Coin Cell Battery (Type 2)  
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Battery Replacement  
c. To insert the new battery, slide one edge of the replacement  
battery under the holder’s lip with the positive side up. Push  
the other edge down until the clamp snaps over the other edge  
of the battery.  
Replacing a Coin Cell Battery (Type 2)  
After the battery has been replaced, use the following steps to  
complete this procedure.  
5. Replace the computer cover or access panel.  
6. Plug in the computer and turn on power to the computer.  
7. Reset the date and time, your passwords, and any special system  
setups, using Compaq Computer Setup. Refer to the Computer  
Setup Guide.  
If you normally lock the Smart Cover Lock, use Computer Setup  
to relock the lock and enable the Smart Cover Sensor.  
C–4  
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D
Security Lock Provisions  
Installing a Security Lock  
There are several different security locks that may be used to  
secure the computer. The following illustrations portray some of  
the available security provisions which vary by model. Because of  
chassis differences, the slots may be located in a different position  
than shown.  
Installing Compaq Type 1 Security Bracket (may vary by model)  
WARNING: To avoid injury, use care in handling the separated pieces of  
the security bracket; metal edges may be sharp. Be sure to install the  
bracket so that sharp edges do not extend from the edges of the  
computer chassis.  
Å
Hardware Reference Guide  
D–1  
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Security Lock Provisions  
Installing Compaq Type 2 Security Bracket (may vary by model)  
WARNING: To avoid injury, use care in handling the separated pieces of  
the security bracket; metal edges may be sharp. Be sure to install the  
bracket so that sharp edges do not extend from the edges of the  
computer chassis.  
Å
D–2  
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Security Lock Provisions  
Installing a Kensington Cable Lock with a Compaq Type 2  
Bracket (may vary by model)  
WARNING: To avoid injury, use care in handling the separated pieces of  
the security bracket; metal edges may be sharp. Be sure to install the  
bracket so that sharp edges do not extend from the edges of the  
computer chassis.  
Å
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Security Lock Provisions  
Installing a Kensington Cable Lock (may vary by model)  
Installing a Kensington Cable Lock (may vary by model)  
D–4  
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E
Electrostatic Discharge  
A discharge of static electricity from a finger or other conductor may  
damage system boards or other static-sensitive devices. This type of  
damage may reduce the life expectancy of the device.  
Preventing Electrostatic Damage  
To prevent electrostatic damage, observe the following precautions:  
Avoid hand contact by transporting and storing products in  
static-safe containers.  
Keep electrostatic-sensitive parts in their containers until they  
arrive at static-free workstations.  
Place parts on a grounded surface before removing them from  
their containers.  
Avoid touching pins, leads, or circuitry.  
Always be properly grounded when touching a static-sensitive  
component or assembly.  
Grounding Methods  
There are several methods for grounding. Use one or more of the  
following methods when handling or installing electrostatic-sensitive  
parts:  
Use a wrist strap connected by a ground cord to a grounded  
workstation or computer chassis. Wrist straps are flexible straps  
with a minimum of 1 megohm +/- 10 percent resistance in the  
ground cords. To provide proper ground, wear the strap snug  
against the skin.  
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Electrostatic Discharge  
Use heelstraps, toestraps, or bootstraps at standing workstations.  
Wear the straps on both feet when standing on conductive floors  
or dissipating floor mats.  
Use conductive field service tools.  
Use a portable field service kit with a folding static-dissipating  
work mat.  
If you do not have any of the suggested equipment for proper  
grounding, contact your Compaq authorized dealer, reseller, or  
service provider.  
For more information on static electricity, contact your Compaq  
authorized dealer, reseller, or service provider.  
E–2  
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F
Routine Computer Care and  
Shipping Preparation  
Routine Computer Care  
Follow these suggestions to take care of your computer and monitor:  
Operate the computer on a sturdy, level surface. Leave a 3-inch  
(7.6-cm) clearance at the back of the system unit and above the  
monitor to permit the required airflow.  
Never operate the computer with the cover or side panel removed.  
Never restrict the airflow into the computer by blocking the front  
vents or air intake. Do not place the keyboard, with the keyboard  
feet down, directly against the front of the desktop unit as this  
also restricts airflow.  
Keep the computer away from excessive moisture, direct sunlight,  
and extremes of heat and cold. For information about the  
recommended temperature and humidity ranges for your  
computer, refer to Appendix A, “Specifications,” in this guide.  
Keep liquids away from the computer and keyboard.  
Never cover the ventilation slots on the monitor with any type of  
material.  
Turn off the computer before you do either of the following:  
Wipe the exterior of the computer with a soft, damp cloth as  
needed. Using cleaning products may discolor or damage the  
finish.  
Occasionally clean the air vents on the front and back of the  
computer. Lint and other foreign matter can block the vents  
and limit the airflow.  
Hardware Reference Guide  
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Routine Computer Care and Shipping Preparation  
CD-ROM Drive Precautions  
Be sure to observe the following guidelines while operating or  
cleaning your CD-ROM drive.  
Operation  
Do not move the drive during operation. This may cause it to  
malfunction during reading.  
Avoid exposing the drive to sudden changes in temperature, as  
condensation may form inside the unit. If the temperature  
suddenly changes while the drive is on, wait at least one hour  
before you turn off the power. If you operate the unit  
immediately, it may malfunction while reading.  
Avoid placing the drive in a location that is subject to high  
humidity, extreme temperatures, mechanical vibration, or direct  
sunlight.  
Cleaning  
Safety  
Clean the panel and controls with a soft, dry cloth or a soft cloth  
lightly moistened with a mild detergent solution. Never spray  
cleaning fluids directly on the unit.  
Avoid using any type of solvent, such as alcohol or benzene,  
which may damage the finish.  
If any object or liquid falls into the drive, immediately unplug the  
computer and have it checked by an authorized Compaq service  
provider.  
F–2  
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Routine Computer Care and Shipping Preparation  
Shipping Preparation  
Follow these suggestions when preparing to ship your computer:  
1. Back up the hard drive files on PD discs, tape cartridges, or  
diskettes. Be sure that the backup media is not exposed to  
electrical or magnetic impulses while stored or in transit.  
The hard drive locks automatically when the system power is  
turned off.  
2. Remove and store any program diskettes from the diskette drives.  
3. Insert a blank diskette into the diskette drive to protect the drive  
while in transit. Do not use a diskette on which you have stored or  
plan to store data.  
4. Turn off the computer and external devices.  
5. Disconnect the power cord from the electrical outlet, then from  
the computer.  
6. Disconnect the system components and external devices from  
their power sources, then from the computer.  
Ensure that all boards are seated properly and secured in the board  
slots before shipping the computer.  
7. Pack the system components and external devices in their original  
packing boxes or similar packaging with sufficient packing  
material to protect them.  
For environmental nonoperating ranges, see Appendix A,  
“Specifications,” in this guide.  
Hardware Reference Guide  
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Routine Computer Care and Shipping Preparation  
F–4  
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B
battery  
replacement C–1  
installing 2–16  
height A–1, A–2  
C
CD-ROM drive  
busy indicator 1–2  
eject button 1–2  
installing 2–15  
Components  
Keyboard 1–4  
components  
front panel 1–2  
keyboard 1–4  
connector 1–3  
rear panel 1–3  
computer care F–1  
memory  
installing 2–6  
microphone connector 1–2, 1–3  
D
depth A–1, A–2  
diskette drive  
activity light 1–2  
drive positions 2–12  
DVD-ROM drive  
installing 2–15  
connector 1–3  
E
electrostatic discharge E–1  
expansion card, installing or removing 2–9  
expansion slot cover, removing 2–9  
button 1–2  
cord connector 1–3  
on light 1–2  
F
Q
features 1–1  
Quiet Drive B–7  
front bezel, removing 2–5  
Hardware Reference Guide  
Index–1  
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Index  
R
removing  
bezel blanks 2–5  
stereo headphone jack 1–2  
computer access panel 2–3  
drive from drive bay 2–13, 2–14  
expansion card 2–9  
front bezel 2–5  
USB 1–2, 1–3  
S
SCSI controller B–5  
SCSI device  
voltage select switch 1–3  
W
guidelines B–3  
weight A–1, A–2  
width A–1, A–2  
Windows Logo Key 1–6  
SCSISelect utility B–6  
security lock provisions D–1  
serial connector 1–3  
Index–2  
Hardware Reference Guide  
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