HP ProLiant SL165s G7 Software Configuration Manual page 22

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