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Chapter 7: BIOS
QPI Link Frequency Select
Use this feature to select the desired QPI frequency. The options are Auto, 6.4
GT/s, 7.2 GT/s, and 8.0 GT/s.
DIMM Confi guration
This section displays the following DIMM information.
Current Memory Mode
This item displays the current memory mode.
Current Memory Speed
This item displays the current memory speed.
Mirroring
This item displays if memory mirroring is supported by the motherboard. Memory
mirroring creates a duplicate copy of the data stored in the memory to enhance
data security.
Sparing
This item displays if memory sparing is supported by the motherboard. Memory
sparing enhances system performance.
DIMM Information
CPU Socket 1 DIMM Information/CPU Socket 2 DIMM Information
P1/P2-DIMMA1~3, P1/P2-DIMMB1~3, P1/P2-DIMMC1~3, P1/P2-DIMMD1~3
The status of the memory modules specifi ed above will be displayed as detected
by the BIOS.
Memory Mode
When Independent is selected, all DIMMs are available to the operating system.
When Mirroring is selected, the motherboard maintains two identical copies of all
data in memory for data backup. When Lockstep is selected, the motherboard
uses two areas of memory to run the same set of operations in parallel. The
options are Independent, Mirroring, and Lockstep.
DRAM RAPL Mode
RAPL (Running Average Power Limit) provides mechanisms to enforce power
consumption limits on supported processors The options are DRAM RAPL
MODE0 , DRAM RAPL MODE1, and Disabled.
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