Advanced menu
43
Advanced chipset control
Table 45. Advanced Chipset Control submenu
BIOS item Usage
QPI & IMC Configuration
QPI Links Speed This feature sets QPI’s data transfer speed. The options are Slow-mode, and Full
Speed.
QPI Frequency This feature sets the desired QPI frequency. The options are Auto, 4.800 GT,
5.866GT, 6.400 GT.
QPI L0s and L1 This enables the QPI power state to low power. L0s and L1 are automatically selected
by the motherboard. The options are Disabled and Enabled.
Memory Frequency This feature forces a DDR3 frequency slower than what the system has detected. The
available options are Auto, Force DDR-800, Force DDR-1066, and Force DDR-1333.
Memory Mode The options are Independent, Channel Mirror, Lockstep, and Sparing:
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.
Sparing – A preset threshold of correctable errors is used to trigger failover. The
spare memory is put online and used as active memory in place of the failed
memory.
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 options 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.
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