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Chapter 5 BIOS
DIMM Information
• DIMMA1
• DIMMB1
• DIMMA2
• DIMMB2
Memory RAS (Reliability_Availability_Serviceability) Conguration
Patrol Scrub
Patrol Scrubbing is a process that allows the CPU to correct correctable memory errors
detected on a memory module and send the correction to the requestor (the original source).
When this item is set to Enabled, the IO hub will read and write back one cache line every
16K cycles, if there is no delay caused by internal processing. By using this method, roughly
64 GB of memory behind the IO hub will be scrubbed every day. The options are Enable
and Disable.
Patrol Scrub Interval
This feature allows you to decide how many hours the system should wait before the next
complete patrol scrub is performed. Use the keyboard to enter a value from 0-24. The
default setting is 24.
Demand Scrub
Demand Scrubbing is a process that allows the CPU to correct correctable memory errors
found on a memory module. When the CPU or I/O issues a demand-read command, and
the read data from memory turns out to be a correctable error, the error is corrected and
sent to the requestor (the original source). Memory is updated as well. Select Enable to
use Demand Scrubbing for ECC memory correction. The options are Disable and Enable.
Device Tagging
Select Enable to support device tagging. The options are Disable and Enable.
South Bridge
The following South Bridge information will display:
•
• USB Module Version
• USB Devices
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