User`s manual

4-8
X8DTH-6/X8DTH-6F/X8DTH-i/X8DTH-iF User's Manual
Advanced Chipset Control
CPU Bridge Confi guration
QPI Links Speed
Use this item to select QPI data transfer speeds and enable/disable QPI Fre-
quency selection. If Slow-mode is selected, QPI Frequency will remain slow (safe
mode), and cannot be selected the user. If Full-speed is selected, the following
item will be available for the user to select the QPI frequency. The options are
Slow-mode, and Full-Speed.
QPI Frequency (Available when QPI Links Speed is set to Full-speed)
This selects the desired QPI frequency. The options are Auto, 4.800 GT,
5.866GT, 6.400 GT.
QPI L0s and L1
Select Enabled to lower power consumption during the QPI power state. L0s
and L1 are automatically selected by the motherboard. The options are Disabled
and Enabled.
Memory Frequency
This feature forces a DDR3 to run at a frequency other than what the system has
detected. Select Force SPD (Serial Presence Detect) to force the memory to run
at a frequency based on the SPD Standard (Table). The available options are
Auto, Force DDR-800, Force DDR-1066, Force DDR-1333, and Force SPD.
Memory Mode
When Independent is selected, all DIMMs are available to the operating system.
When Channel Mirroring is selected, the motherboard maintains two identical
copies of all data stored in Channel 1 and Channel 2 memory for redundancy.
When Lockstep is selected, the motherboard uses two areas of memory to run
the same set of operations in parallel. The options are Independent, Channel
Mirroring, and Lockstep.
Demand Scrubbing
This is a memory error-correction scheme that allows the processor to write cor-
rect data back into the memory block from where it was read by the processor.
The options are Enabled and Disabled.
Patrol Scrubbing
This is a memory error-correction scheme that works in the background looking
for and correcting resident errors. The options are Enabled and Disabled.