Chapter 6: UEFI BIOS
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Above 4G Decoding
This setting Disables or
Enables
64-bit capable devices ability to be decoded in above 4G
address space (only if the system supports 64-bit PCI decoding).
SR-IOV Support
If the system has SR-IOV capable PCI-E devices, this setting will
Disable
or Enable the
Single Root IO Virtualization Support for the system.
BME DMA Mitigation
Use this setting to re-enable the Bus Master Attribute that was disabled during PCI enumeration
for PCI bridges after SMM is locked. The options are
Disabled
and Enabled.
PCIe ARI Support
The options are Disabled, Enabled, and
Auto
.
PCIe Ten Bit Tag Support
Enables PCIe ten bit tags for supported devices. The options are Disabled, Enabled, and
Auto
.
PCIe Spread Spectrum
Use this setting to
Disable
or Enable PCIe Spread Spectrum for your system.
Relaxed Ordering
Enables or disables PCIe device relaxed ordering. The options are Disabled and
Enabled
.
VGA Priority
Use this setting to select between onboard or offboard VGA support. The options are
Onboard
and Offboard
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.
M.2 (AHCI) 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.
M.2-HC1 OPROM
This setting enables or disables the M.2-HC1 OPROM option. The options include Disabled,
EFI or
Legacy
.
M.2-HC2 OPROM
This setting enables or disables the M.2-HC2 OPROM option. The options include Disabled,
EFI or
Legacy
.
