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Chapter 4: BIOS
USB Mass Storage Driver Support
Select Enabled for USB mass storage device support. The options are Disabled and Enabled.
PCIe/PCI/PnP Configuration
BME DMA Mitigation
Use this feature to enable Bus Master Attribute during PCI enumeration for PCI bridges after
SMM locked. The options are Disabled and Enabled.
Onboard Video Option ROM
Use this feature to select which firmware function to be loaded for the onboard video used for
system boot. The options are Disabled and Legacy (if the Boot Mode Select feature under
the Boot tab is set to Legacy), Disabled and EFI (if the Boot Mode Select feature under the
Boot tab is set to UEFI), and Disabled, Legacy, and EFI (if the Boot Mode Select feature
under the Boot tab is set to Dual).
Above 4GB MMIO BIOS assignment
Select Enabled to decode a PCI device that supports 64-bit in the space above 4G Address.
The options are Disabled and Enabled.
PCI PERR/SERR Support
Use this feature to enable or disable PCI PERR/SERR support. The options are Disabled
and Enabled.
VGA Priority
Use this feature to select the active video type. The options are Onboard and Offboard.
NVMe Firmware Source
The feature determines which type of NVMe firmware should be used in your system. The
options are Vendor Defined Firmware and AMI Native Support.
Storage Option ROM/UEFI Driver
This feature controls the execution of UEFI and Legacy storage option ROM. The options
are Do not launch, UEFI, and Legacy.
PCIe/PCI/PnP Configuration
RSC-S-6G4 SLOT1 PCI-E 4.0 X16 OPROM
Use this feature to select which firmware type to be loaded for the add-on card in this slot.
The options are Disabled and Legacy (if the Boot Mode Select feature under the Boot tab
is set to Legacy), Disabled and EFI (if the Boot Mode Select feature under the Boot tab is
set to UEFI), and Disabled, Legacy, and EFI (if the Boot Mode Select feature under the Boot
tab is set to Dual).
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