Acer Altos R920 Series - Manual (Page 127)

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Memory RAS and Performance Configuration
Parameter Description Option
Memory
Mirroring
Possible Indicates if system memory is configured
for memory mirroring. Yes/No
Memory
Sparing Possible Indicates if system memory is configured
for memory sparing. Yes/No
Select Memory
RAS
Configuration Provides options for configuring
Memory RAS. The possible options for
this menu item are:
• RAS Disabled - Normal mode of
operation.
• Sparing - Improves reliability by
reserving memory for use as a
replacement in the event of DIMM
failure.
• Mirroring - Optimizes reliability by
using half of physical memory as a
backup.
RAS Disabled
Sparing
Mirroring