Acer AW2000h-AW175h F1, Service Manual

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Chapter 9 67
Advanced Chipset Control
The items included in the Advanced Settings submenu are listed below:
CPU Bridge configuration
QPI Links Speed : This feature selects QPI data transfer speed.
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.
•
Inlet Temperature - This is the temperature detected at the chassis inlet. Steps are in 0.5 °C
increments. 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. Steps are in 0.5 °C
increments. The default is [020]. Press "+" or "-" on your keyboard to change this value.
•
Air Flow - This is the air flow 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 defines how many meters above or below sea level the system is located.
•
DIMM Pitch - This is the physical space between each DIMM module. Each step is 1/1000 of an
inch. The default is [400]. Press "+" or "-" on your keyboard to change this value.
North Bridge configuration
This feature allows you to configure the settings for the Intel North Bridge chip.
Intel I/OAT: Significantly reduces CPU overhead by leveraging CPU architectural improvements, freeing
resources for other tasks.
DCA Technology: Uses Intel's DCA (Direct Cache Access) Technology to enhance data transfer effi ciency.