Supermicro H13DSH User Manual page 65

Chapter 4: BIOS
No Snoop
Select Enable to support no-snoop mode for each CB device. The options are Disabled and
Enabled.
VGA Priority
Use this setting to select between onboard or external VGA support. The options are Onboard
and External.
PCIe Ten Bit Tag Support
Use this setting to Disable, Enable or Auto control the PCIe ten bit tags for supported devices.
NVMe Firmware Source
Use this setting to select between the AMI Native firmware support or the device vendor-
defined firmware support. The options are Vendor Defined Firmware and AMI Native Support.
PCI Devices Option Rom Setting
Onboard Video Option ROM
Select Legacy to boot the system using a legacy video device installed on the motherboard.
The options include Disabled, EFI, and Legacy.
USB Configuration
USB Configuration
USB Module Version
USB Controllers: 4 XHCIs
USB Devices: 2 Keyboards, 2 Mice, 4 Hubs
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.
XHCI Hand-Off
This is a work-around solution for operating systems that do not support XHCI (Extensible
Host Controller Interface) hand-off. The XHCI ownership change should be claimed by the
XHCI driver. The options are Enabled and Disabled.
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