Acer AW2000h-AW170h - Manual (Page 79)

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Important: The following feature is only available when QPI Links
Speed is set to Full Speed.
QPI Frequency: This selects the desired QPI frequency.
QPI L0s and L1: This enables the QPI power state to low power. L0s and
L1 are automatically selected by the motherboard.
Memory Frequency: This feature enables you to force a DDR3
frequency slower than what the system has detected.
Memory Frequency: Allows you to force a DDR3 memory module to
run at a frequency other than what the system has detected.
Memory Mode: Set the memory mode.
•
Independent - All DIMMs are available to the operating system.
• Channel Mirror - The motherboard maintains two identical copies
of all data in memory for redundancy.
• Lockstep - The motherboard uses two areas of memory to run the
same set of operations in parallel.
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.
Patrol Scrubbing: A memory error-correction scheme that works in the
background looking for and correcting resident errors.
Throttling - Closed Loop/Throttling - Open Loop: Throttling improves
reliability and reduces power in the processor by automatic voltage
control during processor idle states. If Enabled, the following items will
appear:
• Hysteresis Temperature (For 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.
• Guardband Temperature (For the Closed Loop only) - This is the
temperature which applies to the DIMM temperature threshold.
Steps are in 0.5 °C increments. The default is [006]. Press "+" or "-"
on your keyboard to change this value.