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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.
This document provides instructions for upgrading the Rambus inline memory modules (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.
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 containing 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.
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.
top of system Socket RIMMB_1 Socket RIMMA_2 Socket RIMMB_3 Socket RIMMA_4 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.
$( + ) 1" ,12 1/ ,13 512 MB 256 MB 256 MB CRIMM CRIMM 768 MB 256 MB 256 MB 128 MB 128 MB 1024 MB 256 MB 256 MB 256 MB 256 MB 1024 MB 512 MB 512 MB CRIMM CRIMM 1536 MB 512 MB 512 MB 256 MB 256 MB 2048 MB 512 MB 512 MB 512 MB 512 MB To upgrade memory, perform the following steps.
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 Setup appears in the upper-right corner of the screen, press .
! "#" $ 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 outward until they snap open.
& + ' % + $ + $ $( $ $+ 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.
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