Supero FatTwin F628R2-FC0 User Manual page 115

Rank Interleaving
Use this item to select the memory interleaving mode for memory ranks. The
options are Auto, 1-Way, 2-Way, 4-Way, and 8-Way.
A7 Mode
Select Enabled to support the A7 (Addressing) mode to improve memory
performance. The options are Enable and Disable.
DIMM Information
This item displays the status of a DIMM module as detected by the BIOS.
P1-DIMMA1/P1-DIMMB1/P1-DIMMC1/P1-DIMMD1/P2-DIMME1/P2-DIMMF1/
P2-DIMMG1/P2-DIMMH1
Memory RAS (Reliability_Availability_Serviceability)
Confi guration
Use this submenu to confi gure the following Memory RAS settings.
RAS Mode
When Disable is selected, RAS is not supported. When Mirror is selected, the
serverboard maintains two identical copies of all data in memory for data backup.
When Lockstep is selected, the serverboard uses two areas of memory to run
the same set of operations in parallel to boost performance. The options are
Disable, Mirror, and Lockstep Mode.
Lockstep x4 DIMMs
Select Enabled to enable Lockstep support for x4 DIMM modules. The options
are Auto, Disabled, and Enabled.
Memory Rank Sparing
Select Enable to enable memory-sparing support for memory ranks to improve
memory performance. The options are Disabled and Enabled.
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 Enable, the PCH (Platform Control
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 PCH will be scrubbed every day. The options are Enable and Disable.
7-15
Chapter 7: BIOS