Chapter 4: BIOS (for EPYC 7001 Series)
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PCIe/PCI/PnP Conguration
This menu provides PCIe/PCI/PnP conguration settings and information.
PCI Bus Driver Version
Above 4G Decoding
This setting Enables or Disables 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 Enable or Disable the
Single Root IO Virtualization Support for the system.
PCIe Spread Spectrum
Use this setting to Enable or Disable PCI-E 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 oboard VGA support The options are Onboard
and Oboard.
NVMe Firmware Source
Use this setting to select between the AMI Native rmware support or the device vendor-
dened rmware support. The options are AMI Native Support and Vendor Dened Firmware.
M.2(AHCI) Firmware Source
Use this setting to select between the AMI Native rmware support or the device vendor-
dened rmware support. The options are AMI Native Support and Vendor Dened Firmware.
VGA Priority
Use this setting to select between onboard or oboard VGA support The options are Onboard
and Oboard
NVMe Firmware Source
Use this setting to select the NVMe rmware between AMI Native or Vendor Dened. The
options are Vendor Dened Firmware and AMI Native Support.