PCIe/PCI/PnP Configuration Menu
The following information is displayed.
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PCI Bus Driver Version
PCI Devices Common Settings:
Above 4G Decoding
Select Enabled to decode a PCI device that supports 64-bit in the space above 4G Address. The options are Disabled and Enabled.
Re-Size BAR Support
Use this feature to enable the Resizable BAR support. Resizable BAR is a PCIe interface technology that allows the CPU to access to the entire frame buffer. With this technology, your system will be able to handle multiple CPU to GPU transfers simultaneously rather than queuing, which can improve the frame rate performance. The options are Disabled and Enabled.
MMCFG Base
This feature determines how the lowest Memory Mapped Configuration (MMCFG) base is assigned to onboard PCI devices. The options are 1 G, 1.5 G, 1.75 G, 2 G, 2.25 G, 3 G, and Auto. The options of 2 G and 2.25 G are not available when the MMCFG size is 2 G. The option of 3 G is not available when the MMCFG size is 1 G or 2 G.
MMCFG Size
Use this feature to set the MMCFG size. The options are 64 M, 128 M, 256 M, 512 M, 1 G, 2 G, and Auto.
Note: The options shown here depend on your memory size.
MMIO High Base
Use this feature to select the base memory size according to memory-address mapping for the I/O hub. The options are 248T, 120T, 88T, 60T, 30T, 56T, 40T, 32T, 24T, 16T, 4T, 2T, 1T, 512G, 3584T, and Auto. The options of 248T, 120T, 88T, 60T, 30T, and 3584T are CPU-dependent.
MMIO High Granularity Size
Use this feature to select the high memory size according to memory-address mapping for the I/O hub. The options are 1G, 4G, 16G, 32G, 64G, 256G, and 1024G. This feature is motherboard-dependent.
SR-IOV Support (Unavailable when "Workload Profile" is set to Virtualization)
Select Enabled for Single-Root IO Virtualization support. The options are Disabled and Enabled.
Bus Master Enable
If this feature is set to Enabled, the PCI Bus Driver will enable the Bus Master Attribute for DMA transactions. If this feature is set to Disabled, the PCI Bus Driver will disable the Bus Master Attribute for Pre-Boot DMA protection. The options are Disabled and Enabled.
ARI Support
Select Enabled for Alternative Routing-ID Interpretation (ARI) support. The options are Disabled and Enabled.
NVMe Firmware Source
Use this feature to select the NVMe firmware to support system boot. The options are Vendor Defined Firmware and AMI Native Support. The option of Vendor Defined Firmware is pre-installed on the drive and may resolve errata or enable innovative functions for the drive. The default option, AMI Native Support, is offered by the BIOS with a generic method.
VGA Priority
Use this feature to select the graphics device to be used as the primary video display for system boot. The options are Onboard and Offboard.
Onboard Video Option ROM
Select EFI to boot the computer using the Extensible Firmware Interface (EFI) device installed on the onboard video port. The options are Disabled and EFI.
Onboard LAN1 Option ROM / Onboard LAN2 Option ROM / AOM / JMEZZ1 / RSC-B-66G5/SLOT2 PCIe 5.0 x16 / RSC-B-66G5/SLOT1 PCIe 5.0 x16
Select EFI to allow you to boot the computer using the EFI device installed on the PCIe slot specified. The options are Disabled and EFI.
Note: The number of slots and slot naming vary based on your motherboard features.