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aDuring system bootup, enter the System Options Menu. See “System options menu” on page 90.
bUse the up and down arrow keys to select BIOS Setup Utility, then press Enter. The BIOS main menu displays on the monitor.
2Use the up and down arrow keys to select the Memory menu, then press Enter. The Memory menu appears.
3Use the up and down arrow keys to select Configure Memory RAS and Performance, then press Enter. The Configure Memory RAS and Performance menu appears.
4Set the Desired Memory Configuration to either Max Performance or Maximum Compatibility.
5Select View Configuration Details.
•Make sure Configuration Possible indicates Yes. If the option indicates No, you may need to install more memory to meet the requirements of the selected configuration.
•Make sure that Sparing indicates Yes.
6Return to the Memory menu option and set the Sparing Threshold value from 1 through 15.
7Select View and Configure Memory Board X option (where X is the memory board that is being configured).
Make sure that Board Status indicates Healthy.
8Set the Reserve Rank for Spare to Enabled.
9Press F10 to save changes and exit.
10Press Y to confirm. The server reboots to activate the changes.
