Tip: EMPTY: DIMM is not installed in the DIMM slot.
Present, Enabled: DIMM is available.
Memory Deconfigure Mode Details
Select a DIMM group per memory controller to disable or enable, and press
Enter.
Processors sub menu
Select an item to display or set, and press Enter.
Note: Do not change the settings of other than the following items. If you
change the settings, UEFI may not start up.
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UEFI setup menu
Hitachi Compute Blade 500 Series EFI User's Guide