Dell Precision WorkStation 420 User Manual
Dell Precision™ WorkStation 420  
System Memory Upgrade  
ꢀꢁꢂꢃꢄꢅ  
w w w. d e l l . c o m | s u p p o r t . d e l l . c o m  
ꢀꢁꢂꢂꢃꢄꢅꢁꢆꢇ ꢇꢈꢉꢊꢃꢋꢈꢅꢌꢍꢎꢏꢎꢇꢈꢉꢃꢐꢑꢒ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢄꢅ ꢈꢁꢆꢉꢊꢋꢈꢌꢍꢄ  
ꢀ ꢀ ꢀꢁ ꢂ ꢃ ꢄ ꢄ ꢁ ꢅ ꢆ ꢇ ꢈ ꢉ ꢊ ꢋ ꢋ ꢆ ꢌ ꢍ ꢁ ꢂ ꢃ ꢄ ꢄ ꢁ ꢅ ꢆ ꢇ  
ꢀꢁꢂꢃꢄꢅꢆꢀꢁꢂꢇ ꢃꢄꢅꢆꢈꢉꢊꢆꢋꢈꢌꢂꢇꢁꢉꢄ  
Throughout this guide, blocks of text may be accompanied by an icon and printed in  
bold type or in italic type. These blocks are notes, notices, and cautions, and they are  
used as follows:  
NOTE: A NOTE indicates important information that helps you make better use of  
your computer system.  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢇꢀꢁꢂꢃꢄꢅꢇꢈꢉꢊꢈꢋꢌꢍꢎꢏꢇꢎꢈꢍꢐꢎꢑꢇꢒꢓꢍꢎꢉꢍꢈꢌꢔꢇꢊꢌꢕꢌꢖꢎꢇꢍꢓꢇꢐꢌꢑꢊꢗꢌꢑꢎꢇꢓꢑꢇꢔꢓꢏꢏꢇ  
ꢓꢘꢇꢊꢌꢍꢌꢇꢌꢉꢊꢇꢍꢎꢔꢔꢏꢇꢙꢓꢚꢇꢐꢓꢗꢇꢍꢓꢇꢌꢛꢓꢈꢊꢇꢍꢐꢎꢇꢒꢑꢓꢜꢔꢎꢕꢝ  
ꢄ  ꢂꢃꢁꢀꢆꢇ ꢇꢄ  ꢂꢃꢁꢀꢇꢈꢉꢊꢈꢋꢌꢍꢎꢏꢇꢌꢇꢒꢓꢍꢎꢉꢍꢈꢌꢔꢔꢙꢇꢐꢌ!ꢌꢑꢊꢓꢚꢏꢇꢏꢈꢍꢚꢌꢍꢈꢓꢉꢇꢗꢐꢈꢋꢐ"ꢇꢈꢘꢇ  
ꢉꢓꢍꢇꢌꢛꢓꢈꢊꢎꢊ"ꢇꢕꢌꢙꢇꢑꢎꢏꢚꢔꢍꢇꢈꢉꢇꢕꢈꢉꢓꢑꢇꢓꢑꢇꢕꢓꢊꢎꢑꢌꢍꢎꢇꢈꢉ#ꢚꢑꢙꢝ  
Information in this document is subject to change without notice.  
© 2001 Dell Computer Corporation. All rights reserved.  
Reproduction in any manner whatsoever without the written permission of Dell Computer  
Corporation is strictly forbidden.  
Trademarks used in this text: Dell, Dell Precision, and the DELL logo are trademarks of Dell  
Computer 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.  
May 2001 P/N 9D777 Rev. A00  
ꢀꢁꢂꢂꢃꢄꢅꢁꢆꢇ ꢇꢈꢉꢊꢃꢋꢈꢅꢌꢍꢎꢏꢎꢇꢈꢉꢃꢐꢑꢒ  
ꢍꢓ ꢎꢁꢔꢃꢕꢁꢔꢈꢅꢓꢃꢖꢗꢘꢅꢏꢙꢁ  
This document provides instructions for upgrading the Rambus inline memory mod-  
ules (RIMMs) on the Dell Precision WorkStation 420.  
NOTES: Dell recommends that only a technically knowledgeable person perform this  
procedure.  
Dell recommends that you read the entire procedure before you begin. You must also  
be familiar with removing the system cover and locating the RIMMs.  
Dell recommends that you print the contents of the system User’s Guide for  
referencing important information that may not be available during critical procedures.  
This document is available on your Dell Precision ResourceCD and can also be  
accessed from the User’s Guides icon on your desktop if you have not reinstalled the  
operating system.  
ꢀꢁꢂꢃꢄꢅꢆꢇꢂ ꢈꢉꢊ ꢋꢌꢍꢎ  
You must upgrade the basic input/output system (BIOS) before you upgrade the  
RIMMs. Otherwise, the existing BIOS may not recognize the new RIMMs, and the  
system will not operate.  
To upgrade the BIOS:  
1. Download the BIOS update utility for the computer to be updated from the Dell  
support website.  
a. Go to http://support.dell.com.  
If this is your first time to use this website, complete the one-time  
registration.  
b. Click Downloads for Your Dell.  
c. Enter your Service Tag Number for the computer to be updated or select the  
™
appropriate Dell system.  
d. Select the appropriate operating system (OS) and language for the computer  
to be updated.  
support.dell.com  
System Memory Upgrade  
1-1  
e. Select FlashBIOS Updates for the download category.  
f. Click Go and follow the instructions on screen to create a diskette containing  
the BIOS update files.  
NOTE: For some Dell systems, you are given a choice to create a diskette con-  
taining the BIOS update files or to download a file you can use from the hard  
drive. Select the choice to use the file that creates an installation diskette.  
2. Insert the BIOS update diskette into the diskette drive of the computer to be  
updated. Then restart the computer.  
The computer automatically updates the BIOS from the diskette.  
3. When the computer begins to restart and the Dell logo screen appears, remove  
the diskette from the diskette drive so that the computer does not boot from the  
diskette again.  
ꢏꢃꢊꢐꢄꢑꢈꢆꢒꢇꢄꢃꢓ ꢔꢊꢄꢕꢑꢃꢊꢕ  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢈꢇꢌꢊꢍꢇꢍꢎꢏꢋꢐꢑꢈꢇꢒꢓꢈꢇꢔꢃꢕꢕꢖꢗꢇꢌꢊꢍꢇꢘꢍꢖꢒꢇꢍꢎꢏꢋꢐꢑꢈꢇꢒꢓꢈꢇ ꢃꢁꢙꢚꢇꢙꢈꢈꢇ  
ꢛꢜꢎꢏꢋꢐꢑꢝ ꢏꢇꢒꢓꢈꢇ ꢃꢁꢙ!ꢇꢊ ꢇꢎꢐꢏꢈ "#"ꢇꢉꢊꢋꢇꢝ ꢖꢒꢋꢍ$ꢒꢝꢊ ꢖꢚ  
Before you perform any of the procedures in this document, read the following notice  
for your personal safety and to prevent damage to the system from electrostatic dis-  
charge (ESD).  
ꢀꢁꢂꢃꢄꢅꢆꢇꢂꢓꢈꢇꢎꢋꢊ$ꢈꢑꢍꢋꢈꢇꢝ ꢇꢒꢓꢝꢖꢇꢑꢊ$ꢍꢘꢈ ꢒꢇꢋꢈ%ꢍꢝꢋꢈꢖꢇꢒꢓꢐꢒꢇꢌꢊꢍꢇꢋꢈꢘꢊ&ꢈꢇꢒꢓꢈꢇ  
$ꢊ&ꢈꢋꢇꢐ ꢑꢇ'ꢊꢋ(ꢇꢝ ꢖꢝꢑꢈꢇꢌꢊꢍꢋꢇ$ꢊꢘꢎꢍꢒꢈꢋꢚꢇ)ꢊꢇ ꢊꢒꢇꢐꢒꢒꢈꢘꢎꢒꢇꢒꢊꢇꢖꢈꢋ&ꢝ$ꢈꢇꢒꢓꢈꢇ$ꢊꢘ#  
ꢎꢍꢒꢈꢋꢇꢈ*$ꢈꢎꢒꢇꢐꢖꢇꢈ*ꢎ+ꢐꢝ ꢈꢑꢇꢝ ꢇꢒꢓꢝꢖꢇꢑꢊ$ꢍꢘꢈ ꢒꢇꢐ ꢑꢇꢈ+ꢖꢈ'ꢓꢈꢋꢈꢇꢝ ꢇ)ꢈ++ꢇ  
ꢑꢊ$ꢍꢘꢈ ꢒꢐꢒꢝꢊ ꢚꢇ,+'ꢐꢌꢖꢇꢉꢊ++ꢊ'ꢇꢝ ꢖꢒꢐ++ꢐꢒꢝꢊ ꢇꢐ ꢑꢇꢖꢈꢋ&ꢝ$ꢈꢇꢝ ꢖꢒꢋꢍ$ꢒꢝꢊ ꢖꢇ$+ꢊꢖꢈ+ꢌꢚ  
ꢀꢁꢂꢃꢄꢁꢅꢆꢁꢇꢃ ꢈꢉꢊꢅꢋꢌꢁꢅꢍꢃ ꢁꢄ  
Before you remove the computer cover, perform the following steps in the sequence  
indicated.  
ꢀꢁꢂꢃꢄꢅꢆꢇꢂꢊꢇꢓꢈ+ꢎꢇꢐ&ꢊꢝꢑꢇꢎꢊꢖꢖꢝ-+ꢈꢇꢑꢐꢘꢐꢏꢈꢇꢒꢊꢇꢒꢓꢈꢇꢖꢌꢖꢒꢈꢘꢇ-ꢊꢐꢋꢑꢗꢇꢍ ꢎ+ꢍꢏꢇꢌꢊꢍꢋꢇ  
$ꢊꢘꢎꢍꢒꢈꢋꢇꢖꢌꢖꢒꢈꢘꢇꢐ ꢑꢇ'ꢐꢝꢒꢇ".ꢇꢒꢊꢇ/0ꢇꢖꢈ$ꢊ ꢑꢖꢇ-ꢈꢉꢊꢋꢈꢇꢋꢈꢘꢊ&ꢝ ꢏꢇꢐꢇ$ꢊꢘꢎꢊ ꢈ ꢒꢇ  
ꢉꢋꢊꢘꢇꢒꢓꢈꢇꢖꢌꢖꢒꢈꢘꢇ-ꢊꢐꢋꢑꢇꢊꢋꢇꢑꢝꢖ$ꢊ  ꢈ$ꢒꢝ ꢏꢇꢐꢇꢎꢈꢋꢝꢎꢓꢈꢋꢐ+ꢇꢑꢈ&ꢝ$ꢈꢇꢉꢋꢊꢘꢇꢒꢓꢈꢇ  
$ꢊꢘꢎꢍꢒꢈꢋꢚ  
1. Turn off the computer and any peripherals.  
2. Disconnect the computer and peripherals from their power sources. Also, discon-  
nect any telephone or telecommunication lines from the computer.  
Before disconnecting a peripheral from the computer or removing a component  
from the system board, verify that the standby power light, located on the sys-  
tem board, has turned off. If it is on, you may need to wait 15 to 30 seconds for it  
to go out (see the internal system board label that is attached to the cover of your  
computer).  
1-2  
System Memory Upgrade  
3. Ground yourself by touching an unpainted metal surface on the chassis, such as  
the metal around the card-slot openings at the back of the computer, before  
touching anything inside your computer. Dell recommends that you use a wrist  
grounding strap in this operation.  
While you work, periodically touch an unpainted metal surface on the computer  
chassis to dissipate any static electricity that might harm internal components.  
Doing so reduces the potential for personal injury or shock.  
In addition, take note of these safety guidelines when appropriate:  
•
When you disconnect a cable, pull on its connector or on its strain-relief loop, not  
on the cable itself. Some cables have a connector with locking tabs; if you are dis-  
connecting this type of cable, press in on the locking tabs before disconnecting  
the cable. As you pull connectors apart, keep them evenly aligned to avoid bend-  
ing any connector pins. Also, before you connect a cable, make sure both  
connectors are correctly oriented and aligned.  
•
Handle components and cards with care. Do not touch the components or con-  
tacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a  
component such as a RIMM by its edges, not by its pins.  
ꢀꢁꢂꢃꢄꢅꢆꢇꢂ ꢎꢓꢕꢈꢊꢖ ꢔꢊꢖꢒꢃꢓ  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢈꢇꢌꢊꢍꢇꢍꢎꢏꢋꢐꢑꢈꢇꢒꢓꢈꢇꢔꢃꢕꢕꢖꢗꢇꢌꢊꢍꢇꢘꢍꢖꢒꢇꢍꢎꢏꢋꢐꢑꢈꢇꢒꢓꢈꢇ ꢃꢁꢙꢚꢇꢙꢈꢈꢇ  
ꢛꢜꢎꢏꢋꢐꢑꢝ ꢏꢇꢒꢓꢈꢇ ꢃꢁꢙ!ꢇꢊ ꢇꢎꢐꢏꢈ "#"ꢇꢉꢊꢋꢇꢝ ꢖꢒꢋꢍ$ꢒꢝꢊ ꢖꢚ  
Dell Precision 420 systems support dual, direct, Rambus dynamic random-access  
memory (RDRAM) channels. The channels are designated A and B. It also supports  
Rambus in-line memory modules (RIMMs) in 64-, 128-, 256-, and 512-megabyte (MB)  
capacities. The RIMMs feature error checking and correction (ECC).  
Dell Precision 420 systems support a maximum of four RIMMs for up to 2 gigabytes  
(GB) of total memory.  
Figure 1-1 shows the RIMMs and RIMM sockets.  
support.dell.com  
System Memory Upgrade  
1-3  
top of system  
Socket RIMMB_1  
Socket RIMMA_2  
Socket RIMMB_3  
Socket RIMMA_4  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢇꢈꢆꢉꢊꢋꢋꢌꢆꢍꢎꢏꢆꢉꢊꢋꢋꢆꢐꢑꢒꢓꢅꢔꢌ  
ꢆꢎꢏꢏꢅꢎꢉꢐꢋꢑꢒꢒꢑꢋꢈꢃꢉꢅꢓꢔꢈꢕꢁꢒꢈꢉꢁꢐ  
When you add RIMMs, you must install them in matched pairs (pairs of identical  
capacity). If only one pair of RIMMs is installed, they must occupy sockets RIMMB_1  
and RIMMA_2, and you must install continuity RIMMs (CRIMMs) in sockets  
RIMMB_3 and RIMMA_4.  
Table 1-1 lists sample memory configurations.  
ꢕꢍꢖꢗꢅꢆꢇ ꢇꢈꢆꢆꢐꢍꢘꢙꢗꢅꢆꢉꢊꢋꢋꢆꢚꢑꢎꢛꢁꢂꢃꢄꢍꢔꢁꢑꢎꢆꢜꢙꢔꢁꢑꢎꢌ  
ꢔꢃꢕꢕꢇꢙꢊ$(ꢈꢒ  
ꢂꢊꢒꢐ+ꢇ)ꢈꢖꢝꢋꢈꢑ  
ꢕꢈꢘꢊꢋꢌ  
ꢔꢃꢕꢕ 1"  
64 MB  
ꢔꢃꢕꢕ,12  
64 MB  
ꢔꢃꢕꢕ 1/  
CRIMM  
64 MB  
ꢔꢃꢕꢕ,13  
CRIMM  
64 MB  
128 MB  
256 MB  
256 MB  
512 MB  
64 MB  
64 MB  
128 MB  
128 MB  
128 MB  
128 MB  
CRIMM  
128 MB  
CRIMM  
128 MB  
1-4  
System Memory Upgrade  
ꢕꢍꢖꢗꢅꢆꢇ ꢇꢈꢆꢆꢐꢍꢘꢙꢗꢅꢆꢉꢊꢋꢋꢆꢚꢑꢎꢛꢁꢂꢃꢄꢍꢔꢁꢑꢎꢆꢜꢙꢔꢁꢑꢎꢌꢀꢁꢂꢃꢄꢅꢆꢄꢇ ꢈꢉ  
ꢔꢃꢕꢕꢇꢙꢊ$(ꢈꢒ  
ꢂꢊꢒꢐ+ꢇ)ꢈꢖꢝꢋꢈꢑ  
ꢕꢈꢘꢊꢋꢌ  
ꢔꢃꢕꢕ 1"  
256 MB  
256 MB  
256 MB  
512 MB  
512 MB  
512 MB  
ꢔꢃꢕꢕ,12  
256 MB  
256 MB  
256 MB  
512 MB  
512 MB  
512 MB  
ꢔꢃꢕꢕ 1/  
CRIMM  
128 MB  
256 MB  
CRIMM  
256 MB  
512 MB  
ꢔꢃꢕꢕ,13  
CRIMM  
128 MB  
256 MB  
CRIMM  
256 MB  
512 MB  
512 MB  
768 MB  
1024 MB  
1024 MB  
1536 MB  
2048 MB  
To upgrade memory, perform the following steps.  
ꢀꢁꢂꢃꢄꢅꢆꢇꢙꢈꢈꢇꢛ4ꢋꢊꢒꢈ$ꢒꢝ ꢏꢇ,ꢏꢐꢝ ꢖꢒꢇꢅ+ꢈ$ꢒꢋꢊꢖꢒꢐꢒꢝ$ꢇ)ꢝꢖ$ꢓꢐꢋꢏꢈ!ꢇꢝ ꢇꢌꢊꢍꢋꢇꢀꢁꢂꢃꢄꢅꢆ  
ꢇ ꢈꢉꢊꢅꢋꢃꢌꢉ ꢆꢍꢎꢌꢏꢄꢚ  
ꢄ,ꢜꢂꢃꢁꢀꢐꢇ ꢈꢉꢊꢋꢈꢇꢌꢊꢍꢇꢋꢈꢘꢊ&ꢈꢇꢌꢊꢍꢋꢇ$ꢊꢘꢎꢍꢒꢈꢋꢇ$ꢊ&ꢈꢋꢗꢇꢖꢈꢈꢇꢛꢙꢐꢉꢈꢒꢌꢇ5ꢝꢋꢖꢒ65ꢊꢋꢇ  
7ꢊꢍꢇꢐ ꢑꢇ7ꢊꢍꢋꢇꢄꢊꢘꢎꢍꢒꢈꢋ!ꢇꢝ ꢇꢌꢊꢍꢋꢇꢖꢌꢖꢒꢈꢘꢇꢑꢂꢄꢊꢒꢂꢆꢍꢎꢌꢏꢄꢚ  
1. If you have not already done so, upgrade the BIOS.  
See “Upgrading the BIOS” on page 1-1 for instructions.  
2. Turn off the computer and peripherals, disconnect them from their electrical out-  
lets, and wait 10 to 20 seconds.  
3. If you have a mini-tower computer, lay the computer on its right side.  
4. Open the computer cover.  
5. Install or remove RIMMs as necessary to reach the desired memory total.  
NOTE: For instructions on installing RIMMs, see “Installing a RIMM” on page 1-7.  
For instructions on removing RIMMs, see “Removing a RIMM” on page 1-8.  
6. Install CRIMMs in any RIMM sockets that do not contain RIMMs.  
7. If you have a mini-tower computer, stand the computer upright.  
8. Close the computer cover, reconnect the computer and peripherals to their  
power sources, and turn them on.  
As the system boots, it detects the presence of the new RIMMs and automati-  
cally changes the system configuration information in system setup.  
NOTES: Adding or removing RIMMs causes the following message to be dis-  
played at the next system start-up:  
The amount of system memory has changed.  
support.dell.com  
System Memory Upgrade  
1-5  
After you replace the cover, if the chassis intrusion option is set to Enabled, the  
chassis intrusion detector causes the following message to be displayed at the  
next system start-up:  
ALERT! Cover was previously removed.  
9. Enter system setup. When  
screen, press <F2>.  
appears in the upper-right corner of the  
Setup  
If you wait too long and the operating system begins to load into memory, allow  
the system to complete the load operation; shut down the system and try again.  
NOTE: For instructions on using system setup, see the User’s Guide.  
10. Reset the Chassis Intrusion option:  
a. Press the down-arrow key to move to the System Security option.  
b. Press <Enter> to access the System Security option's pop-up menu.  
c. Press the down-arrow key to move to the Chassis Intrusion option.  
d. Press the left- or right-arrow key to select Reset.  
e. Choose Enabled, Enabled-Silent, or Disabled.  
NOTES: The chassis intrusion default is Enabled.  
If a setup password has been assigned by someone else, contact the network  
administrator for information on resetting the chassis intrusion detector.  
See the system User's Guide for information on the chassis intrusion detector.  
11. When the memory total is correct, press <Esc> to exit system setup.  
If the memory total is incorrect, repeat steps 2 through 4. Check the installed  
modules to ensure that they are seated properly in their sockets. Then repeat  
steps 5 through 10.  
If the memory total is still incorrect, contact Dell for technical support.  
See “Getting Help” in the User’s Guide.  
12. Run the Dell Diagnostics to verify that the memory modules are operating  
properly.  
NOTE: For information on troubleshooting and running the Dell Diagnostics, see  
“Troubleshooting” in the User’s Guide.  
1-6  
System Memory Upgrade  
ꢎꢉꢐꢋꢑꢒꢒꢈꢉꢊꢅꢑꢅꢆꢎꢏꢏ  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢈꢇꢌꢊꢍꢇꢍꢎꢏꢋꢐꢑꢈꢇꢔꢃꢕꢕꢖꢗꢇꢌꢊꢍꢇꢘꢍꢖꢒꢇꢍꢎꢏꢋꢐꢑꢈꢇꢒꢓꢈꢇ ꢃꢁꢙꢚꢇꢙꢈꢈꢇ  
ꢛꢜꢎꢏꢋꢐꢑꢝ ꢏꢇꢒꢓꢈꢇ ꢃꢁꢙ!ꢇꢊ ꢇꢎꢐꢏꢈ "#"ꢇꢉꢊꢋꢇꢝ ꢖꢒꢋꢍ$ꢒꢝꢊ ꢖꢚ  
If a RIMM is already installed in the socket you want to use, you must remove it. For  
instructions, see “Removing a RIMM” on page 1-8.  
To install a RIMM, perform the following steps (see Figure 1-2).  
1. Locate the plastic securing clips at each end of the socket. Press the clips out-  
ward until they snap open.  
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ꢖꢒꢋꢐꢝꢏꢓꢒꢇꢑꢊ' ꢇꢝ ꢒꢊꢇꢒꢓꢈꢇꢖꢊ$(ꢈꢒꢇ'ꢝꢒꢓꢇꢈ%ꢍꢐ+ꢇꢉꢊꢋ$ꢈꢇꢐꢎꢎ+ꢝꢈꢑꢇꢐꢒꢇꢈꢐ$ꢓꢇꢈ ꢑꢇꢊꢉꢇꢒꢓꢈꢇ  
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ꢖꢝꢑꢈꢇꢊꢉꢇꢒꢓꢈꢇꢖꢊ$(ꢈꢒꢚ  
2. Press the RIMM straight into the socket until the securing tabs snap into place  
around the ends of the RIMM.  
notches (2)  
securing  
clips (2)  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢝꢈꢆꢊꢎꢌꢔꢍꢗꢗꢁꢎꢂꢆꢍꢆꢉꢊꢋꢋ  
support.dell.com  
System Memory Upgrade  
1-7  
ꢆꢁꢇꢃ ꢈꢉꢊꢅꢑꢅꢆꢎꢏꢏ  
ꢀꢁꢂꢃꢄꢅꢆꢇꢂꢊꢇꢐ&ꢊꢝꢑꢇꢑꢐꢘꢐꢏꢈꢇꢒꢊꢇꢒꢓꢈꢇꢘꢈꢘꢊꢋꢌꢇꢘꢊꢑꢍ+ꢈꢗꢇꢎꢋꢈꢖꢖꢇꢒꢓꢈꢇꢖꢈ$ꢍꢋꢝ ꢏꢇ$+ꢝꢎꢖꢇ  
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To remove a RIMM, press the securing clips outward simultaneously until the RIMM  
disengages from the socket (see Figure 1-3). It should pop out slightly.  
securing  
clips (2)  
ꢀꢁꢂꢃꢄꢅꢆꢇ  ꢈꢆꢉꢅꢘꢑ!ꢁꢎꢂꢆꢍꢆꢉꢊꢋꢋ  
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System Memory Upgrade  
Dell Precision™ WorkStation 420  
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Dell Computer Corporation ꢀꢁꢂꢃꢄꢅꢆꢇꢀ ꢈꢉꢊꢋꢌꢈꢍ ꢅꢎꢏꢃꢐꢈꢑꢒꢓꢔꢃꢕꢖ  
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Corporation ꢀ#$ꢝꢚꢛ  
ꢜꢁꢝꢋꢌ)*ꢃ+ꢖꢑ,--./0ꢀ#$ꢐꢄ12345 !"ꢘꢑꢈꢅ67589ꢙꢚ  
5ꢌ :ꢘꢗꢀ#$;234ꢋꢌ<= Dell Computer Corporation ꢃ>?ꢚꢅꢒꢀꢝꢋ89ꢙ@Aꢛ  
2001 B 5 C P/N 9D777 Rev. A00  
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Dell Precision WorkStation 420  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ  
ꢀꢁꢂꢃꢄDell Precision WorkStation 420 ꢅ RIMM (Rambus Inline Memory Module) ꢆ  
ꢇ
ꢈꢉꢊꢋꢌꢍꢎꢏꢐꢑꢒꢓꢔꢕꢖꢗꢘꢍꢙ  
ꢀꢁ : ꢚꢅꢏꢐꢃꢄꢛꢜꢝ !"ꢅ#ꢎ$%&'()ꢎꢚ*ꢆ+,-ꢗꢘꢍꢙ  
./ꢆ0-ꢎ1ꢑꢀꢏꢐꢆ23ꢘꢂ45ꢍꢎꢚ*ꢆ+,-ꢗꢘꢍꢙꢘ6ꢄ7  
89:;<ꢋꢅ=>?ꢗ$@ RIMM ꢅABꢑꢒꢓꢔCDEFꢗꢔ+DGH%  
#>ꢘꢍꢙ  
IH ꢏꢐꢆ&'ꢍꢎJꢑꢄKꢋLꢋMNOꢌ%PQꢂR ꢓSTꢑUVꢄ  
Dell ꢂꢃꢄKꢋLꢋMNOꢌꢅWXꢆYZꢗꢄGH [\ꢆ]^ꢂRꢎC_  
ꢑꢗꢔ+Dꢚ*ꢆ+,-ꢗꢘꢍꢙKꢋLꢋMNOꢌꢃ Dell Precision ResourceCD  
ꢑ`a()ꢔꢓꢘꢍꢙꢘ6ꢄbcꢊꢋ9deꢉ789:ꢅfOe8gꢋhꢆ  
'iꢔꢓ ꢓSTꢃꢄj8kg ꢈꢅ [ ꢀꢁꢂꢁꢃꢄꢅꢆ ] ꢇOlemnꢇk  
o8ꢍꢎꢚ*pꢂRꢘꢍꢙ  
BIOS ꢀꢁꢂꢃꢄꢅꢆꢇ  
RIMM ꢆꢇ ꢈꢉꢊꢋꢌꢍꢎ1ꢑꢄBIOS ( qꢀrst789: ) ꢆꢇ ꢈꢉꢊꢋꢌꢍ  
ꢎGH%#>ꢘꢍꢙBIOS ꢆꢇ ꢈꢉꢊꢋꢌꢗ ꢓ*ꢄuvꢅ BIOS % RIMM ꢆw"  
ꢗ ꢓxyz%#>ꢘꢍꢙ  
BIOS ꢆꢇ ꢈꢉꢊꢋꢌꢍꢎꢑꢃꢄ{|ꢅꢏꢐꢆ&'ꢗꢔD}(ꢓꢙ  
1.  
ꢇ
ꢈjꢋgꢍꢎle~ꢋ€ꢑ‚ꢗ6 BIOS ꢇ ꢈjꢋgKꢋ9dƒ9dꢆ  
Dell „ꢞꢋg Web „Ogmn†‡eˆꢋꢌꢗꢘꢍꢙ  
a. http://support.jp.dell.com ꢑꢇko8ꢗꢘꢍꢙ  
‰-ꢔꢚꢅ Web „OgꢆPQꢍꢎSTꢃꢄ+Š‹ꢅ789:ꢑTŒꢔ  
Žꢋ:cꢋꢆꢋ‘’“OMꢗꢘꢍꢙ  
b.  
ꢇ
ꢈjꢋgꢍꢎle~ꢋ€ꢅ„ꢋ”8€ꢉ•–ꢆrtꢍꢎmꢄ—˜Q  
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ꢅ Dell 789:ꢆ™šꢗꢘꢍꢙ  
c. [ †‡eˆꢋꢌ ] > [ ›œOh“O“ƒ ] > [BIOS] ꢅꢐꢑžŸꢘꢍꢙ  
support.dell.com  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ ꢎ4-1  
d.  
ꢇ
ꢈjꢋgꢍꢎ BIOS ꢅ ¡ꢆkƒ kꢗꢔꢄ[ꢇ ꢈꢉꢁꢆ] ꢆkƒ  
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ꢗꢘꢍꢙ¢£()ꢎꢏꢐꢑ¤iꢔꢄBIOS ꢇ ꢈjꢋg›œOhꢆ¥¦jd  
8§ gꢆ.¨ꢗꢘꢍꢙ  
ꢀꢁ : Dell 789:ꢑCiꢔꢃꢄBIOS ꢇ ꢈjꢋg›œOhjd8§ gꢆ.  
¨ꢍꢎmꢄ©ꢋꢌjd8kmn˜QꢂRꢎC_ꢑ›œOhꢆ†‡eˆꢋ  
ꢌꢍꢎm™šꢍꢎꢚ*%ꢂRꢘꢍꢙꢚꢚꢂꢃꢄOe8gꢋhjd8§  
gꢅ.¨ꢆ™šꢗꢔD}(ꢓꢙ  
2.  
ꢇ ꢈjꢋgꢍꢎle~ꢋ€ꢅjd8§ gꢌ“Oꢑ BIOS ꢇ ꢈjꢋg  
jd8§ gꢆªrꢗꢄle~ꢋ€ꢆf«¬ꢗꢘꢍꢙ  
le~ꢋ€ꢃꢄjd8§ gꢅ›œOhꢆ˜iꢔ BIOS ꢆ-¬ꢝꢑꢇ ꢈjꢋ  
gꢗꢘꢍꢙ  
3. le~ꢋ€%f«¬ꢆ®0ꢗꢔ Dell ˆ¯%°±ꢑ¢£()6nꢄjd8§  
gꢌ“Omnjd8§ gꢆ=>sꢗꢔꢄle~ꢋ€%jd8§ gmn  
f²«¬ꢗ ꢓC_ꢑꢗꢘꢍꢙ  
ꢈꢉꢊꢋꢌꢍꢀꢎꢏ  
ꢀꢁ : RIMM ꢊꢋꢌꢍꢎꢏꢁꢆꢐꢑꢒꢓꢔꢕBIOS ꢐꢋꢌꢍꢎꢏꢁꢆꢖꢗꢘꢙꢚꢛꢜꢝ  
ꢖ !"ꢔ#$%&ꢕ'BIOS ꢊꢋꢌꢍꢎꢏꢁꢆ((4-1 )ꢁ* ) ꢐ+,-%./0$  
ꢀꢁꢑꢁm)6ꢏꢐꢆ&'ꢍꢎ1ꢑꢄ+Š‹ꢅ³´ꢆµꢎ6-ꢄꢘ6¶·¸ꢑCꢎ  
789:ꢅ¹ºꢆ»¼6-ꢑꢄ{|ꢅ½¾¿Àꢆ+5ŸD}(ꢓꢙ  
ꢀꢁ : 12ꢔ34ꢊ!"5&ꢕ67ꢁꢐ8ꢜ9-%:ꢈ;<ꢁ=>?ꢊ@Aꢚꢘꢙ  
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ꢔBꢜꢝꢖ 12CDE Dell ꢊFG<ꢋHꢔ340I%$ꢗJ9ꢊK@&ꢕLM  
N5&ꢑOB$Dꢒꢔ-%./0$ ꢝPꢕQRSTꢊ8ꢜUVWK@ꢔX-%  
&ꢕYIZIꢊ!"ꢔꢘ[\]%./0$  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈ  
le~ꢋ€ꢅ;<ꢋꢆ=>?ꢍ1ꢑꢄ{|ꢅ89 ꢈꢆꢐ•Á+>ꢑ&'ꢗꢔD  
}(ꢓꢙ  
ꢀꢁ : ^_`abcdꢊefꢐghꢖꢗPiꢕ^_`abcjkꢊlm?nꢊ8ꢜ  
9-Wꢕ:ꢈ;<ꢁ=jkꢊopSTꢊ8ꢜ9-&ꢕ:ꢈ;<ꢁ=^_`aꢊqr  
ꢐs]%jk 15 t 30 uv]Pw5ꢑ]%./0$  
4-2  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ  
1. le~ꢋ€*ꢍÂꢔꢅÃÄÅÆꢅ·ÇꢆÈ>ꢘꢍꢙ  
2. le~ꢋ€*ÃÄÅÆꢅ·Çlꢋꢌꢆ·ÇleoegmnÉRꢘꢍꢙꢘ6ꢄ  
·ÊËÌꢘ6ꢃ·¸4ÍËÌꢅ§ꢋhple~ꢋ€mn?ꢗꢘꢍꢙ  
le~ꢋ€mnÃÄÅÆꢆ?ꢗ6>ꢄ789:qÎmnÏÐꢆ=>?ꢍ1  
ꢑꢄ789:qÎꢅ8€e<O·Ç“eꢈ%ÑVꢔꢓꢎꢚ*ꢆÒwꢗꢔD}(  
ꢓꢙ“eꢈ%ÓÔꢗꢔꢓꢎ*Rꢃꢄ“eꢈ%ÑVꢎꢘꢂ 15 Õ 30 Ö×Øꢘꢍ ( le  
~ꢋ€;<ꢋꢑÙn)ꢔꢓꢎWÏ789:qΓÚhꢆ]^ꢗꢔD}(ꢓ )ꢙ  
3. le~ꢋ€ꢅWÏꢅÏÐꢑÛ)ꢎ1ꢑꢄle~ꢋ€Ü±ꢅ;ꢋꢌ8ˆ  
g
 Áꢄ7Ýꢋ7ꢅÞß()ꢔꢓ ꢓàᢱꢑÛ)ꢔꢄâãmn¶·¸ꢆäå  
ꢗꢘꢍꢙꢚꢅ./ꢆ'_*Rꢃ¶·¸»æQƒ8g<eꢌꢆçèꢎꢚ*ꢆ+,  
-ꢗꢘꢍꢙ  
./épêëꢝꢑle~ꢋ€ꢅ7Ýꢋ7ꢅÞß()ꢔꢓ ꢓàᢱꢑÛ)  
ꢔꢄWÏì¨ÏÐꢆí¹ꢍꢎxyzꢅ#ꢎ¶·¸ꢆäåꢗꢔD}(ꢓꢙ  
ꢚ_ꢍꢎꢚ*ꢑC>ꢄè%@î·ꢅïðꢆñèꢎꢚ*%ꢂRꢘꢍꢙ  
(nꢑꢄòóꢍꢎSTꢑꢃꢄ{|ꢅÓꢑp—½¾D}(ꢓꢙ  
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ꢊOeƒƒꢋ›hꢋꢈꢆꢒmùꢂÉꢓꢔD}(ꢓꢙ§ꢋhꢑꢃꢄˆ úeꢉ  
€ꢅ#ꢎløk€%çꢓꢔꢓꢎpꢅp#>ꢘꢍꢙꢚꢅ€Oꢈꢅ§ꢋhꢆÉ  
DJꢃꢄˆ úeꢉ€ꢆûꢗꢔmn§ꢋhꢆ?ꢗꢔD}(ꢓꢙløk€ꢆ  
ÉDJꢃꢄløk€ꢅ~eꢆüý ꢓC_ꢑꢘiꢍ¼ꢑõRÉꢓꢔD}(ꢓꢙ  
ꢘ6ꢄlꢋꢌꢆþÿꢍꢎJꢃꢄꢀ$ꢅløk€ꢅꢁR%Tiꢔꢓꢎꢚ*ꢆÒw  
ꢗꢔD}(ꢓꢙ  
•
ÏÐ@;ꢋꢌꢃꢔꢓꢂꢓꢑ=>ꢃiꢔD}(ꢓꢙ;ꢋꢌꢄꢅÏÐ@þÿÏꢅꢑ  
ꢃÛ) ꢓꢂD}(ꢓꢙ;ꢋꢌꢆꢆꢒJꢃꢇꢆꢆꢒmꢄàá ꢅ=>ç蝓  
§ gꢅÏꢅꢆꢆiꢔD}(ꢓꢙRIMM  ÁꢅÏÐꢆꢆꢒJꢃꢄ~eꢑꢃÛ)  
 ꢓꢂꢇꢆꢆiꢔD}(ꢓꢙ  
ꢐꢑꢒꢓꢔꢕꢖꢀꢁꢂꢃꢄꢅꢆꢇ  
ꢀꢁ : RIMM ꢊꢋꢌꢍꢎꢏꢁꢆꢐꢑꢒꢓꢔꢕBIOS ꢐꢋꢌꢍꢎꢏꢁꢆꢖꢗꢘꢙꢚꢛꢜꢝ  
ꢖ !"ꢔ#$%&ꢕ'BIOS ꢊꢋꢌꢍꢎꢏꢁꢆ((4-1 )ꢁ* ) ꢐ+,-%./0$  
Dell Precision 420 ꢃꢄjꢇh+Cꢈ†Oꢊkg RDRAM (Rambus Dynamic Random-  
Access Memory) ꢉÝøhꢆ„ꢞꢋgꢗꢔꢓꢘꢍꢙꢉÝøhꢃ A * B ꢑꢊ>óꢔn)  
ꢘꢍꢙꢘ6ꢄ64ꢄ128ꢄ256ꢄ+Cꢈ 512-MB ( ꢋN<Og ) ꢅ RIMM (Rambus Inline  
Memory Module) p„ꢞꢋgꢗꢔꢓꢘꢍꢙꢚ)nꢅ RIMM ꢑꢃ ECC ( ꢌ“ꢋꢍꢎ+C  
ꢈꢏꢐ ) Åy%ꢑꢒ()ꢔꢓꢘꢍꢙ  
Dell Precision 420 789:ꢅꢋꢓƒꢃꢄ2ꢔ 4 ꢕꢅ RIMM ꢆ˜QꢗꢔTꢖ 2 GB (ꢗN  
<Og ) ꢘꢂꢘꢙꢂRꢘꢍꢙ  
ꢚ 4-1 ꢑ RIMM * RIMM ‘§ gꢆ£ꢗꢘꢍꢙ  
support.dell.com  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ ꢎ4-3  
ꢌꢍꢎꢏꢐꢑ  
ꢊꢋꢌꢍ RIMMB_1  
ꢊꢋꢌꢍ RIMMA_2  
ꢊꢋꢌꢍ RIMMB_3  
ꢊꢋꢌꢍ RIMMA_4  
ꢂ 4-1. RIMM ꢃ RIMM ꢄꢅꢆꢇ  
RIMM ꢄꢅꢉꢊꢋꢌꢍꢎꢏꢐꢑꢏꢒ  
RIMM ꢃꢄꢛꢜXꢝꢅ RIMM ꢆꢑꢗꢔ=>çèꢎGH%#>ꢘꢍꢙRIMM ꢆ   
ꢗm=>çè ꢓSTꢃꢄ‘§ g RIMMB_1 +Cꢈ RIMMA_2 ꢆ˜QꢗꢔD}(  
ꢓꢙ‘§ g RIMMB_3 +Cꢈ RIMMA_4 ꢑꢃ CRIMM ( le9d!O9d RIMM)  
ꢆ=>çèꢎGH%#>ꢘꢍꢙ  
¢ 4-1 ꢑꢋꢓƒì¨ꢅ"ꢆ£ꢗꢘꢍꢙ  
4-1. RIMM ꢈꢉꢊꢋ  
RIMM ꢊꢋꢌꢍ  
ꢂꢃꢄꢅꢆꢇ  
ꢀꢁ ꢈꢉ  
RIMMB_1  
64 MB  
RIMMA_2  
RIMMB_3  
CRIMM  
64 MB  
RIMMA_4  
CRIMM  
64 MB  
128 MB  
256 MB  
256 MB  
512 MB  
64 MB  
64 MB  
64 MB  
128 MB  
128 MB  
128 MB  
128 MB  
CRIMM  
128 MB  
CRIMM  
128 MB  
4-4  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ  
4-1. RIMM ꢈꢉꢊꢋ ꢀ ꢁꢂ ꢃ  
RIMM ꢊꢋꢌꢍ  
RIMMA_2  
ꢂꢃꢄꢅꢆꢇ  
ꢀꢁ ꢈꢉ  
RIMMB_1  
RIMMB_3  
CRIMM  
128 MB  
256 MB  
CRIMM  
256 MB  
512 MB  
RIMMA_4  
CRIMM  
128 MB  
256 MB  
CRIMM  
256 MB  
512 MB  
512 MB  
768 MB  
256 MB  
256 MB  
256 MB  
512 MB  
512 MB  
512 MB  
256 MB  
256 MB  
256 MB  
512 MB  
512 MB  
512 MB  
1024 MB  
1024 MB  
1536 MB  
2048 MB  
ꢋꢓƒꢆꢇ ꢈꢉꢊꢋꢌꢍꢎꢑꢃꢄ#ꢅꢏꢐꢆ&'ꢗꢔD}(ꢓꢙ  
ꢀꢁ : x^_`ayzꢄꢅꢆ{ꢊ'|q}~dꢊ€(ꢐ+,-%./0$  
ꢒꢓ : :ꢈ;<ꢁ=ꢊ67ꢁꢐ8ꢜ9ꢖꢓꢔꢕꢀꢁꢂꢁꢃꢄꢅꢆꢊ'@AꢔꢛP]  
%ꢊ‚ƒ(ꢐ+,-%./0$  
1. BIOS ꢆꢘ}ꢇ ꢈꢉꢊꢋꢌꢗꢔꢓ ꢓSTꢃꢄBIOS ꢆꢇ ꢈꢉꢊꢋꢌꢗꢔD  
}(ꢓꢙ  
ꢏꢐꢑꢒꢓꢔꢃꢄ$BIOS ꢅꢇ ꢈꢉꢊꢋꢌ%(4-1 cꢋ ) ꢆ]^ꢗꢔD}(ꢓꢙ  
2. le~ꢋ€*ÃÄßBꢅ·ÇꢆÈ>ꢄ·Çlꢋꢌꢆ·ÇleoegmnÉꢓ  
ꢔ 10 Õ 20 Ö×Øꢘꢍꢙ  
3. &!€'ꢋle~ꢋ€ꢆ+˜ꢓꢅSTꢃꢄ()ꢆ|ꢑꢗꢔle~ꢋ€ꢆB  
Rꢘꢍꢙ  
4. le~ꢋ€;<ꢋꢆ®Rꢘꢍꢙ  
5. GHꢑ‚ꢜꢔ RIMM ꢅ=>çè*=>?ꢗꢆ'ꢓꢄ*+ꢍꢎTꢖꢋꢓƒXꢝꢑ  
ꢗꢘꢍꢙ  
ꢀꢁ : RIMM ꢅ=>çè$ꢑꢒꢓꢔꢃꢄ$RIMM ꢅ=>çè%(4-7 cꢋ ) ꢆ]  
^ꢗꢔD}(ꢓꢙRIMM ꢅ=>?ꢗ$ꢑꢒꢓꢔꢃꢄ$RIMM ꢅ=>?  
ꢗ%(4-8 cꢋ ) ꢆ]^ꢗꢔD}(ꢓꢙ  
6. RIMM %ß,()ꢔꢓ ꢓ RIMM ‘§ gꢑ CRIMM ꢆ=>çèꢘꢍꢙ  
7. &!€'ꢋle~ꢋ€ꢆ+˜ꢓꢅSTꢃꢄle~ꢋ€ꢆ-ꢅ./ꢑ«ꢚꢗ  
ꢘꢍꢙ  
support.dell.com  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ ꢎ4-5  
8. le~ꢋ€;<ꢋꢆ0ꢜꢄle~ꢋ€*ÃÄÅÆꢅ·Çlꢋꢌꢆ·Çle  
oegꢑþÿꢗꢔmnꢄ·Çꢆr)ꢘꢍꢙ  
789:%«¬ꢍꢎ*Rꢑꢄ789:ꢃ12 RIMM ꢅv3ꢆꢍsꢗꢄo  
ꢈKꢋ9dƒ9dꢂ-¬ꢝꢑ789:ꢙê[\ꢆ45ꢗꢘꢍꢙ  
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ꢇ
ꢀꢁ : RIMM ꢅ=>çè@=>?ꢗꢆ'_*ꢄ789:«¬6ꢑ{|ꢅꢋ oꢋ  
%¢£()ꢘꢍꢙ  
The amount of system memory has changed.  
789:ꢋꢓƒꢅXꢝ%45()ꢘꢗ6ꢙ  
7Ýꢋ7Oeghꢋ7ebꢈ77eꢆ [Enabled] ꢑꢙêꢗꢔꢓꢎS  
Tꢄ;<ꢋꢆ=>?ꢗꢔ=>çè +ꢍ*ꢄ7Ýꢋ7Oeghꢋ7e  
ꢃ{|ꢅꢋ oꢋꢆ#ꢅ789:«¬6ꢑ¢£ꢗꢘꢍꢙ  
ALERT! Cover was previously removed.  
89 ! ;<ꢋ%=>?()ꢘꢗ6ꢙ  
9.  
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gꢇ ꢈKꢋ9dƒ9dꢆ«¬ꢗꢘꢍꢙ°±ꢅ(ꢄ:ꢑ$Setup%*¢£  
()6nꢄ<F2> úꢋꢆûꢗꢔD}(ꢓꢙ  
<F2> úꢋꢆûꢗôꢈ)ꢔꢄꢋꢓƒ;ꢅbcꢊꢋ9deꢉ789:ꢅˆꢋꢌ%®  
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]^ꢗꢔD}(ꢓꢙ  
Chassis Intrusion  
10. {|ꢅꢏꢐꢑ¤iꢔꢄ  
bꢈ77eꢆƒo gꢗꢘꢍꢙ  
a. |AYúꢋꢆûꢗꢔ [System Security] bꢈ77eꢆ™šꢗꢘꢍꢙ  
System Security  
b. <Enter> úꢋꢆûꢗꢔꢄ[ ] bꢈ77eꢅꢞ ꢈꢇ ꢈꢋ!ꢋ  
ꢆ¢£ꢗꢘꢍꢙ  
Chassis Intrusion  
c. |AYúꢋꢆûꢗꢔꢄ[  
] bꢈ77eꢆ™šꢗꢘꢍꢙ  
Reset  
d. (ꢘ6ꢃBAYúꢋꢆûꢗꢔꢄ[  
] ꢆ™šꢗꢘꢍꢙ  
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Enabled-Silent Disabled  
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RIMM ꢍꢄꢅꢉꢊ  
ꢀꢁ: RIMM ꢊꢋꢌꢍꢎꢏꢁꢆꢐꢑꢒꢓꢔꢕBIOS ꢊꢋꢌꢍꢎꢏꢁꢆꢐꢑꢒꢘꢙꢚꢛ  
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ꢎꢘꢂꢘiꢍ¼ûꢗUŸꢘꢍꢙ  
support.dell.com  
ꢀꢁꢂꢃꢄꢅꢆꢇ ꢈꢉꢊꢋꢌꢍ ꢎ4-7  
ꢎꢏꢐꢑꢒ2ꢓ  
ꢔꢕꢖ ꢌꢗ (2)  
ꢂ 4-2. RIMM ꢊꢔꢕꢖꢗ  
RIMM ꢍꢄꢅꢆꢓ  
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ꢔꢕꢖ ꢌꢗ (2)  
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