Supermicro SUPERSERVER 6036ST-6LR, User Manual, Page: 88 / 110

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or all packet processing of this add-on card.) When this feature is set to Enabled,
it will enhance overall system performance by providing direct memory access for
data transferring. The options are Enabled and
Disabled.
Crystal Beach/DCA (Direct Cache Access) (Available when Crystal Beach/
DMA is enabled)
This feature works in conjunction with the Intel I/O AT (Acceleration Technology) to
accelerate the performance of the TOE device. When this feature set to Enabled, it
will enhance overall system performance by providing direct cache access for data
transferring. The options are Enabled and
Disabled.
Coarse-Grained Clock Gating
Select Enabled to enable Coarse-Grained Clock Gating support, which will allow
Data to be communicated infrequently (only after larger amounts of computation) in
an effort to lower power consumption. The options are
Enabled
and Disabled.
Intel VT-d
Select Enabled to enable Intel's Virtualization Technology support for Direct I/O VT-d
by reporting the I/O device assignments to VMM through the DMAR ACPI Tables.
This feature offers fully-protected I/O resource-sharing across the Intel platforms,
providing the user with greater reliability, security and availability in networking and
data-sharing. The settings are Enabled and
Disabled
.
IOH PCIE Max Payload Size
Some add-on cards perform faster with the coalesce feature, which limits the pay-
load size to 128 MB; while others, with a payload size of 256 MB which inhibits
the coalesce feature. Please refer to your add-on card user guide for the desired
setting. The options are 256 MB and
128MB
.

South Bridge Confi guration
This feature allows the user to con fi gure the settings for the Intel South Bridge.
USB Functions
This feature allows the user to decide the number of onboard USB ports to be
enabled. The Options are: Disabled, and
Enabled
. (If this item is set to Enabled,
USB 2.0 Controller will be enabled.)
Legacy USB Support
Select Enabled to use Legacy USB devices. If this item is set to Auto, Legacy USB
support will be automatically enabled if a legacy USB device is installed on the
motherboard, and vise versa. The settings are Disabled,
Enabled
and Auto.