Supermicro X8DTI-F [73/99] Northbridgeconfiguration

Chapter 4: AMI BIOS

4-9

QPI Frequency

Use this feature to select the desired QPI frequency. The options are Auto,

4.800 GT, 5.866GT, 6.400 GT.

QPI L0s and L1

Select Enabled to lower 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 frequency slower than what the system has detected

to run at a certain speed. The available options are Auto, Force DDR-800, Force

DDR-1066, and Force DDR-1333.

Memory Mode

Select Independent to make all DIMMs available to the operating system. Select

Channel Mirroring to maintain two identical copies of all data in Channel 1 and

Channel 2 memory modules for data security. Select Lockstep for the mother-

board to use two areas of memory to run the same set of operations in parallel.

Select Sparing for a preset threshold of correctable errors to be used to trigger

fail-over. The spare memory is put online and used as active memory in place

of the failed memory. This option is supported by Intel 5600 Series processors

only. The options are Independent, Channel Mirroring, Lockstep, and Sparing.

Demand Scrubbing

This is a memory error-correction scheme that allows the processor to write cor-

rected 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.

Throttling - Closed Loop

Throttling improves reliability and reduces power in the processor by automatic

voltage control during processor idle states. The options are Enabled and Dis-

abled.

NorthBridgeConguration

This feature is used to congure the settings for the Intel North Bridge chip.