Supero SUPERSERVER 5017A-EF, User Manual

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Chapter 7: BIOS
7-7
UNIT Clock Gating
This feature is used to enable or disable the Unit Clock Gating. The options
are
Enabled
and Disabled.
Fast Boot
Use this feature to enable or disable fast boot, which skips memory training
and attempts to boot the last known good con
fi guration. The options are
Enabled
and Disabled.
Memory Test
This feature is used to enable or disable memory test during boot. The options
are
Enabled
and Disabled.
MRC Debug Messages
Use this feature to enable or disable debug output in MRC (Memory Refer-
ence Code). The options are
Enabled
and Disabled.
DIMM vref Override
This feature is used to enable or disable DIMM vref override. The options are
Enabled and
Disabled
.
MRC Reset Loop
Use this feature to enable or disable MRC (Memory Reference Code) to loop
in
fi nitely. The options are Enabled and
Disabled
.
ECC Support
Use this feature to enable or disable ECC (Error Checking and Correction)
support. The options are
Enabled
and Disabled.
Patrol Scrub Enable
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 North
Bridge 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 North Bridge will be scrubbed every day. The options
are Enabled and
Disabled
.
Patrol Scrub Period
Use this feature to select the length of time period the system uses for Patrol
Scrubbing. The options are
24 Hours
, 10 Hours, 4 Hours and 1 Hour.