Chapter 4: AMI BIOS
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card to handle some or all packet processing of this add-on card. For this moth-
erboard, the TOE device is built inside the ESB 2 South Bridge chip. This feature
is supported only by some types of processors (i.e., Intel Nehalem-WS 1S). The
options are Enabled and Disabled.
DCA Prefetch Delay
A DCA Prefetch is used with TOE components to prefetch data in order to shorten
execution cycles and maximize data processing efciency. Prefetching too fre-
quently can saturate the cache directory and delay necessary cache accesses. This
feature reduces or increases the frequency the system prefetches data. The options
are [8], [16], [32], [40], [48], [56], [64], [72], [80], [88], [96], [104], [112], [120]
Advanced Chipset Control
The items included in the Advanced Settings submenu are listed below:
QPIandIMCConguration
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.
