Chapter 4: BIOS
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PCH SLOT4 PCI-E 3.0 X2 (IN X4)
SLOT4 ASPM Support
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
conguration. Select Disabled to disable ASPM support. The options are Disabled, L0s,
L1, L0s & L1, and Auto.
SLOT4 L1 Substates
Use this feature to congure the PCI Express L1 Substates. The options are Disabled,
L1.1, L1.2, and L1.1 & L1.2
SLOT4 PCIe Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1, Gen2,
and Gen3.
SLOT4 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 Disabled and Enabled.
X550 PCI-E 3.0 X4
X550 ASPM Support
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
conguration. Select Disabled to disable ASPM support. The options are Disabled, L0s,
L1, L0s & L1, and Auto.
X550 L1 Substates
Use this feature to congure the PCI Express L1 Substates. The options are Disabled,
L1.1, L1.2, and L1.1 & L1.2
X550 PCIe Speed
Use this feature to select the PCI Express port speed. The options are Auto, Gen1, Gen2,
and Gen3.
X550 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 Disabled and Enabled.
Port 61h bit-4 Emulation
Select Enabled to enable the emulation of Port 61h bit-4 toggling in SMM (System Management
Mode). The options are Disabled and Enabled.
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