User`s manual

Chapter 7: BIOS
7-9
Patrol Scrubbing
A memory error-correction scheme that works in the background looking for and
correcting resident errors. The options are Enabled and Disabled.
NUMA Support
Select Enabled to use the feature of Non-Uniform Memory Access to improve
CPU performance. The options are Enabled and Disabled.
Memory ECC Error Threshold
This feature allows the user to set the threshold for the ECC memory errors.
The default setting is 2047.
Throttling - Closed Loop/Throttling - Open Loop
Throttling improves reliability and reduces power in the processor by automatic
voltage control during processor idle states. Available options are Disabled and
Enabled. If Enabled, the following items will appear:
Hysteresis Temperature
Temperature Hysteresis is the temperature lag (in degrees Celsius) after the
set DIMM temperature threshold is reached before Closed Loop Throttling
begins. The options are Disabled, 1.5
o
C, 3.0
o
C, and 6.0
o
C.
Guardband Temperature
This is the temperature which applies to the DIMM temperature threshold.
Each step is in 0.5
o
C increment. The default is [006]. Press "+" or "-" on your
keyboard to change this value.
Inlet Temperature
This is the temperature detected at the chassis inlet. Each step is in 0.5
o
C
increment. The default is [070]. Press "+" or "-" on your keyboard to change
this value.
Temperature Rise
This is the temperature rise to the DIMM thermal zone. Each step is in 0.5
o
C
increment. The default is [020]. Press "+" or "-" on your keyboard to change
this value.
Air Flow
This is the air fl ow speed to the DIMM modules. Each step is one mm/sec.
The default is [1500]. Press "+" or "-" on your keyboard to change this value.