Supermicro X13DEG-OA User Manual page 120

Super X13DEG-OA User's Manual
PCIe ACSCTL (Available when "Intel VT for Directed I/O (VT-d)" is set to Enable)
Select Enable to program ACS control to Chipset PCIe Root Port bridges. Select Disable
to program ACS control to all PCIe Root Port bridges. The options are Disable and
Enable.
Opt-Out Illegal MSI Mitigation (Available when "Intel VT for Directed I/O (VT-d)"
is set to Enable)
If this feature is set to Enable, "Illegal OxzFEE Platform Mitigation" will be opted out. The
options are Enable and Disable.
Intel VMD Technology

This section describes the configuration settings for the Intel VMD technology.
Note 1: After you've enabled VMD in the BIOS on a PCIe slot, this PCIe slot will be
dedicated for VMD use only, and it will no longer support any PCIe device. To re-activate
this slot for PCIe use, please disable VMD in the BIOS.
Note 2: The number of PCIe slots and the slot naming can differ depending on the
PCIe devices connected to your motherboard.
NVMe Mode Switch
When this feature is set to Auto, VMD support will be automatically enabled when a VROC
key is detected by the BIOS. The options are Manual, VMD, and Auto.
Intel VMD for Volume Management Device on Socket 0 (CPU1)

(Available when "NVMe Mode Switch" is set to Manual)
VMD Config for PCH ports
Enable/Disable VMD
Select Enable to enable the Intel Volume Management Device (VMD) technology support
for the root port specified. The options are Disable and Enable.
PCH Root Port 0~11 (Available when the device is detected by the system and
"Enable/Disable VMD" above is set to Enable)
Select Enable to enable the Intel VMD technology support for the root port specified. The
options are Disable and Enable.
VMD Config for IOU 0 / VMD Config for IOU 1 / VMD Config for IOU 2 / VMD
Config for IOU 3 / VMD Config for IOU 4
Enable/Disable VMD
Select Enable to enable the Intel VMD technology support for the root port specified. The
options are Disable and Enable.
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