Supermicro X11DAi-N User Manual page 91

Chapter 4: BIOS
Above 4G Decoding (Available if the system supports 64-bit PCI decoding)
Select Enabled to decode a PCI device that supports 64-bit in the space above 4G Address.
The options are Disabled and Enabled.
SR-IOV Support
Use this feature to enable or disable Single Root IO Virtualization Support. The options are
Disabled and Enabled.
MMIOHBase
Use this item to select the base memory size according to memory-address mapping for the
IO hub. The options are 56 TB, 40 TB, 24 TB, 3 TB, 2 TB, and 1 TB.
MMIO High Granularity Size
Use this item to select the high memory size according to memory-address mapping for the
IO hub. The options are 256 GB, 128 GB, 512 GB, and 1024 GB.
PCI PERR/SERR Support
Select Enabled to allow a PCI device to generate a PERR/SERR number for a PCI Bus Signal
Error Event. The options are Enabled and Disabled.
Maximum Read Request
Select Auto for the system BIOS to automatically set the maximum size for a read request
for a PCI-E device to enhance system performance. The options are Auto, 128 Bytes, 256
Bytes, 512 Bytes, 1024 Bytes, 2048 Bytes, and 4096 Bytes.
MMCFG Base
Use this item to select the low base address for PCIE adapters to increase base memory.
The options are 1G, 1.5G, 1.75G, 2G, 2.25G. and 3G.
VGA Priority
Use this item to select the graphics device to be used as the primary video display for system
boot. The options are Onboard Offboard, and Auto.
PCI Devices Option Rom Setting
Onboard NVMe1 Option ROM
This feature Enables or Disables NVME1 OPROM option. The options are EFI, Legacy,
and Disabled.
Onboard NVMe2 Option ROM
This feature Enables or Disables NVME2 OPROM option. The options are EFI, Legacy,
and Disabled.
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