Chapter 4: AMI BIOS
4-9
IDs are allocated to an agent, it will assign a Transaction ID to an event so that
it can be processed in the QPI. Select Balanced to allocate transaction IDs to
an agent based on the setting 32-24-32. Select IO Bias to allocate RTIDs based
on the setting 32-16-40. The options are
Balanced
and IO Bias.
QPI Links Speed
Use this feature to select the data transfer speed for QPI. The options are Slow-
mode, and
Full-Speed
.
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 set QPI power to a lower 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 desired setting. The available options are
Auto
, Force DDR-800, Force DDR-
1066, Force DDR-1333, and Force SPD (memory modules with Serial Presence
Detect capability).
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, and Lockstep.
Demand Scrubbing
This is a memory error-correction scheme that 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
This is the memory error-correction scheme that works in the background looking
for and correcting resident errors. The options are
Enabled
and Disabled.
