Supero C7X58, User Manual

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Chapter 4: AMI BIOS
4-9
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Advanced Chipset Control
The items included in the Advanced Settings submenu are listed below:
QPI and IMC Configuration
QuickPath Interconnect (QPI) is the connection between the CPU and the
motherboard's I/O hub. Use this feature to modify speed and power manage-
ment settings.
QPI Links Speed
Use this feature to select QPI data transfer speed. The options are Slow-mode,
and
Full Speed .
QPI Frequency
Use this option to set the QPI frequency. The options are Auto , 4.800 GT, 5.866
GT, and 6.400 GT.
QPI L0s and L1
Select Enabled to lower the QPI power state. L0s and L1 are automatically
selected by the motherboard. The options are
Disabled and Enabled.
Memory Frequency
Use this option to force the system memory to run at a different frequency than
the default frequency. 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 fail-over. The
spare memory is put online and used as active memory in place of the failed
memory.
Demand Scrubbing
Demand Scrubbing is a process that allows the North Bridge to correct correctable
memory errors found on a memory module. When the CPU or I/O issues a demand-
read command, and the read data from memory turns out to be a correctable error,
the error is corrected and sent to the requestor (the original source). Memory is