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Chapter 6: UEFI BIOS
PCIe ARI Support
Use this setting to enable/disable Alternative Routing-ID Interpretation (ARI). The options are
Disabled, Enabled and Auto.
PCIe Spread Spectrum
Use this setting to Disable or Enable PCIe Spread Spectrum for your system.
Target Link Speed
If supported by hardware and set to Force to x.S GT/S (x being a value of 2.5, 5.0 or 8.0) for
Downstream Ports, this sets an upper limit on Link Operational Speed by restricting the values
advertised by the UPstream component in its training sequences. When Auto is selected,
the HW initialized data will be used.
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.
NVME8/9 SATA0-7
This setting is used for NVME8/9 SATA0-7. The options are Auto, NVME, and SATA.
NVME12/13 SATA8-15
This setting is used for NVME12/13 SATA8-15. The options are Auto, NVME, and SATA.
M.2-C1 PCIe 4.0 X2 OPROM
M.2-C2 PCIe 4.0 X2 OPROM
This setting enables or disables the listed PCIe Slot OPROM option. The options are
Disabled, Legacy or EFI.
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