Owners Manual

Memory Module Upgrade Kits

The system is upgradable to 8 GB by installing combinations of 128-, 256-, 512-MB, 1-GB, or 2-GB registered memory modules. You can purchase memory

upgrade kits as needed.

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Memory Module Installation Guidelines

Starting with the socket closest to the edge of the system board, the memory module sockets are labeled DIMM_1A and DIMM_1B (bank 1) and DIMM_2A and

DIMM_2B (bank 2). See Figure6-3. When you install memory modules, follow these guidelines:

l You must install memory modules in matched pairs (bank 1 DIMMs must match; bank 2 DIMMs must match).

l Install a pair of memory modules in bank 1 before installing a second pair in bank 2.

Figure 6-3. Memory Module Sockets

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Table6-1 illustrates several sample memory configurations based on these guidelines.

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Table 6-1.SampleMemoryConfigurations

Performing a Memory Module Upgrade

To perform a memory module upgrade to the system board, perform the following steps.

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1. Open the system covers. See "Opening the System Covers" in "Troubleshooting Your System."

2. Locate the memory module sockets in which you will install or replace memory modules.

Figure6-3 identifies the memory module banks on the system board and shows the order of the socket designations.

3. Install or replace the memory modules as necessary to reach the desired memory total. See "Installing Memory Modules" or "Removing Memory

Modules."

4. Close the system covers. See "Closing the System Covers" in "Troubleshooting Your System."

5. Reconnect the system to the electrical outlet, and turn on the system.

NOTE: The memory modules must be rated for 266-MHz operation.

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BANK1

BANK2

Total Desired Memory

DIMM_1A

DIMM_1B

DIMM_2A

DIMM_2B

256 MB

128 MB

none

512 MB

256 MB

none

1 GB

256 MB

4 GB

1 GB

8 GB

2 GB

CAUTION: Before you perform this procedure, you must turn off the system and disconnect it from its power source. For more information, see

"Safety First—For You and Your System" in "Troubleshooting Your System."