Memory

10 Restart your server and open the BIOS Setup utility. Verify the System Memory listed in the Main menu. When you exit the BIOS Setup utility, make sure that the operating system loads completely.

11 Follow the instructions in “FRU/SDR Load utility” on page 54.

Configuring memory options

Memory sparing

The chipset on the system board in the server supports memory sparing, which can provide a way to prevent data loss in case of DIMM failure. If a DIMM failure does occur, a DIMM fault LED on the memory board will light orange to indicate the failed DIMM.

Using memory sparing, one rank (a pair of single-sided DIMMS or one double-sided DIMM) on each memory board is used as a memory spare for another rank on the same memory board. If a DIMM begins to fail, the contents of the failing DIMM is copied to the spare DIMM rank on the same memory board. When all of the data is copied, the primary rank is automatically removed from service. One DIMM rank is always maintained in reserve and cannot be used by the operating system.

To configure memory sparing:

1 During server startup, access the System Options Menu. (See “Starting your server” on page 16.)

2 Press the up and down arrow keys to select BIOS Setup Utility from the System Options Menu, then press ENTER. The BIOS Setup utility opens.

3 Press the up and down arrow keys to select Memory, then press ENTER. The Memory configuration menu opens.

4 Press the up and down arrow keys to select Configure System RAS and Performance, then press ENTER. The Configure System RAS and Performance screen opens.

5 Set the Desired Memory Configuration to either Max Performance or Maximum Compatibility.

6 Select View Configuration Details.

■Make sure that Configuration Possible indicates Yes. If it indicates No, you may need to install more memory to meet the requirements of the selected configuration.

■Make sure that Sparing indicates Yes.

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