Chapter 4: BIOS
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ATS
Use this feature to enable Non-Isoch VT-d Engine Address Translation Services (ATS)
support. ATS translates virtual addresses to physical addresses. The options are
En-
able
and Disable.
Posted Interrupt
Use this feature to enable VT-d Posted Interrupt. The options are
Enable
and Disable.
Coherency Support (Non-Isoch)
Use this feature to maintain setting coherency between processors or other devices.
Select Enable for the Non-Isoch VT-d engine to pass through DMA to enhance system
performance. The options are
Enable
and Disable.
Intel
®
VMD Technology
Intel
®
VMD for Volume Management Device on CPU1
Intel
®
VMD for Volume Management Device for PStack0
Select Enable to enable Intel Volume Management Device support for the device
specified by the user. The options are
Disable
and Enable.
PCIe Hot Plug
Use this feature to enable the hot plugging feature for PCI slots. The options are Disable,
Enable
, Auto, and Manual.
PCI-E Completion Timeout (Global) Disable
Use this feature to enable PCI-E Completion Timeout support for electric tuning. The
options are Yes,
No
, and Per-Port.
South Bridge
The following South Bridge information will display:
•
USB Module Version
•
USB Devices
Legacy USB Support
Select Enabled to support onboard legacy USB devices. Select Auto to disable legacy support
if there are no legacy USB devices present. Select Disable to have all USB devices available
for EFI applications only. The options are
Enabled,
Disabled, and Auto.
