System BIOS configuration 22
PCI Express Configuration submenu
Figure 16
PCI Express Configuration submenu
Table 14
PCI Express Configuration submenu fields
Field
Description
Options
Embedded VGA Control Select which graphics controller to use as the primary boot device.
Auto Detect
Always enable on board VGA.
Always
Enabled
AMD IOMMU
Enable IOMMU (Input/Output Memory Management Unit)
implementation for address translation and protection services.
Enabled
Disable IOMMU (Input/Output Memory Management Unit)
implementation for address translation and protection services.
Disabled
ASPM Mode
Disable PCI Express L0s and L1 link power states.
Disabled
Enable PCI Express L0s and L1 link power states.
Enabled
PCIe Gen 2
Gen2: For best possible performance.
Gen2
Gen1: All PCI-E devices will only run in Gen 1 mode.
Gen1