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X8DT3/X8DTi/X8DT3-LN4/X8DTi-LN4 User’s Manual
Demand Scrubbing
A memory error-correction scheme where the Processor writes corrected data
back into the memory block from where it was read by the Processor. The op-
tions are Enabled and Disabled.
Patrol Scrubbing
A memory error-correction scheme that works in the background looking for and
correcting resident errors. The options are Enabled and Disabled.
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 (Closed Loop Only)
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 (Closed Loop Only)
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.
Altitude
This feature defi nes how many meters above or below sea level the system
is located. The options are Sea Level or Below, 1~300, 301~600, 601~900,
901~1200, 1201~1500, 1501~1800, 1801~2100, 2101~2400, 2401~2700,
2701~3000.
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