User Guide

User Guide
Computer Memory: Dell Precision WorkStation 340 Service Manual

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Computer Memory

Dell Precision™ WorkStation 340 Service Manual


Your computer supports dual-channel RDRAM RIMMs in 64-, 128-, 256-, and 512-MB capacities. See "Computer Memory Installation Guidelines" for instructions you must follow when installing memory modules.

To locate the memory sockets on the system board, see "System Board Memory Components."

Memory Module Label

System Board Memory Components

1

memory module sockets (RIMM 3 and 4)

2

memory module sockets (RIMM1 and 2)

Computer Memory Installation Guidelines

  • Before you install new memory modules, download the most recent BIOS for your computer from the Dell | Support website at support.dell.com.

  • Each memory socket on the system board must be occupied either by a RIMM or a CRIMM.

Memory Modules

1

RIMM

2

CRIMM

NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. You must install your original memory modules in pairs either in connectors RIMM1 and RIMM2 or RIMM3 and RIMM4. Do not pair one original memory module with one new memory module. Otherwise, your computer may not start properly.
  • Memory sockets must be upgraded in matched pairs. In other words, two sockets in a pair must contain modules of identical capacity, number of components, and speed. See "System Board Memory Components" to identify pairs of sockets.

  • Mixed pairs of ECC and non-ECC modules all function as non-ECC.

  • Be sure to install a RIMM in socket 1 first (closest to the processor) before installing modules in the other sockets.

  • The system board supports PC800 memory modules.

Removing a Memory Module

CAUTION: RIMMs can get very hot during normal operation. Be sure that the RIMMs have had sufficient time to cool before you touch them.
CAUTION: Before you perform this procedure, see "Safety First—For You and Your Computer."
NOTICE: Before disconnecting a device from the computer, wait 10 to 20 seconds after disconnecting the computer from its electrical outlet. Before removing a component from the system board, verify that the standby power light on the system board has turned off. To locate this light, see your computer's illustration in "System Board Components."
  1. Turn off the computer and devices, disconnect them from their electrical outlets, and wait 10 to 20 seconds.

  2. Open the computer cover.

NOTICE: To avoid damage to the memory module, press the securing clips with equal force applied at each end of the memory socket.
  1. Press the securing clips at each end of the memory socket outward simultaneously until the module pops out slightly from the socket.

NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep them separate from any new modules that you may have, even if you purchased the new modules from Dell. You must install your original memory modules in pairs either in connectors RIMM1 and RIMM2 or RIMM3 and RIMM4. Do not pair one original memory module with one new memory module. Otherwise, your computer may not start properly.
  1. Lift the module away from the socket.

Removing a Memory Module

1

securing clips

2

memory module socket

Installing a Memory Module

  1. If necessary, remove memory modules that occupy system board sockets in which you plan to install upgrade modules.

  2. Press the securing clips at each end of the socket outward until they snap open.

  3. Align the slots on the bottom of the module with the ridges inside the socket.

NOTICE: To avoid damage to the memory module, press the module straight down into the socket with equal force applied at each end of the module.
  1. Press the module straight down into the socket until the securing clips snap into place at the ends of the module. You should hear a click when the module is correctly seated.

Installing a Memory Module

1

securing clips (2)

3

slots (2)

2

ridges (2)

4

memory module socket

  1. Close the computer cover.

  2. Reconnect the computer and devices to their electrical outlets, and turn them on.

NOTE: If enabled, the Chassis Intrusion option will cause the following message to be displayed at the next computer start-up: Alert! Cover was previously removed.Reset the chassis intrusion detector.

The computer detects that the new memory does not match the existing computer configuration information and generates the following message:

The amount of system memory has changed.
Strike the F1 key to continue, F2 to run the setup utility

  1. Enter system setup, and check the value for System Memory. The computer should have already changed the value of System Memory to reflect the newly installed memory. If the new total is correct, skip to step 9.

  2. If the memory total is incorrect, repeat step 1 through step 3. Check the installed modules to ensure that they are seated properly in their sockets. Then repeat step 7 through step 9.

  3. When the System Memory total is correct, exit system setup.

  4. Run the Dell Diagnostics to verify that the memory modules are operating properly.

For for information on running the Dell Diagnostics, see your User's Guide.


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