Question
I'd like to use virtualization function under OS on my H11/H12 series motherboard. Which BIOS items should I enable or disable under BIOS?
Answer
For H11 series motherboard with Naples CPU (EPYC 7xx1) installed, please use latest BIOS and enable below items under BIOS
BIOS >> Advanced >> CPU configuration >> SVM Mode >> Enabled
BIOS >> Advanced >> PCIe/PCI/PnP Configuration >> SR-IOV Support >> Enabled
BIOS >> Advanced >> NB Configuration >> ACS Enable >> Enabled
BIOS >> Advanced >> NB Configuration >> IOMMU >> Enabled

For H12/H11 series motherboard with Rome CPU (EPYC 7xx2) installed, please use latest BIOS and enable below items under BIOS
BIOS >> Advanced >> CPU configuration >> SVM Mode >> Enabled
BIOS >> Advanced >> PCIe/PCI/PnP Configuration >> SR-IOV Support >> Enabled
BIOS >> Advanced >> NB Configuration >> ACS Enable >> Enabled
BIOS >> Advanced >> NB Configuration >> IOMMU >> Enabled
BIOS >> Advanced >> ACPI settings >> PCI AER Support >> Enabled

In newer BIOS revision with Rome processor, please enable AER first then ACS will be exposed
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FAQ ID Related Category / Keyword Date Posted Code
31883 N/A 03/15/20


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