Chapter 6: BIOS
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X2APIC Opt Out
The feature "VT-D" must be enabled for this feature to be configurable. Use this feature to
enable or disable X2APIC Opt Out. The options are Enable and
Disable
.
PCH-IO Configuration
PCH-IO Configuration
•
PCH SKU Name
•
Stepping
PCI Express Configuration
DMI Link ASPM Control
Use this feature to set the ASPM (Active State Power Management) state on the SA
(System Agent) side of the DMI Link. The options are Disabled, L0s, L1, L0sL1, and
Auto
.
Peer Memory Write Enable
Use this feature to enable or disable peer memory write. The options are
Disabled
and
Enabled.
PCH SLOT4 PCI-E 3.0 X4 (IN X8)
PCI-E M.2-M1
PCH SLOT7 PCI-E 3.0 X4 (IN X8)
ASPM
Use this feature to activate 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
.
L1 Substates
Use this feature to set the PCI Express L1 Substates. The options are Disabled, L1.1,
and
L1.1 & L1.2.
PTM
Use this feature to enable or disable Precision Time Measurement. The options are
Disabled and
Enabled
.
DPC
Use this feature to enable or disable Downstream Port Containment. The options are
Disabled and
Enabled
.
