Chapter 4: BIOS
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USB Configuration
XHCI Mode
Select Enabled to support the operation mode for the XHCI (Extensible Host Controller
Interface) controller. The options are
Enabled
and Disabled.
USB2 PHY Power Gating
Use this feature to configure the power consumption for the USB 2.0 physical layer (PHY).
The options are Disabled, Enabled, and
Auto
.
PCI Express Configuration
PCI Express Configuration
CPU SLOT1 PCIE 2.0 x1 (IN X8)
PCI Express Port 1
This item enables or disables the PCI Express Port 0 on the motherboard. The options are
Enabled
and Disabled.
ASPM
Use this item to set the Active State Power Management (ASPM) level for a PCI-E device.
Select Auto for the system BIOS to automatically set the ASPM level based on the system
configuration. Select Disabled to disable ASPM support. The options are Disabled, L0s, L1,
L0sL1, and
Auto
.
PCIe Speed
This feature allows the user to set the PCIe port speed. The options are
Auto
, Gen 2, and
Gen 1.
Detect Non-Compliance Device
Select Enabled for the AMI BIOS to automatically detect a PCI-E device that is not compliant
with the PCI-E standards. The options are Enabled and
Disabled
.
L1 Substates
Use this feature to configure the PCI Express L1 Substates. The options are Disabled,
L1.1, L1.2, and
L1.1 & L1.2
.
Non-Common Clock With SSC Enabled
Use this feature to configure the non-common clocking signal for Spread Spectrum
Clocking (SSC). The options are
Disabled
and Enabled.
Tx Eq Deemphasis Selection
Use this feature to select the level of de-emphasis for an Upstream component. The options
are
3.5dB
and 6dB.
