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Chapter 5 UEFI BIOS
PCH-IO Configuration
PCH-IO Configuration
PCH SKU Name Q370
Stepping B0
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.
PCI Express Root Port 1 - PCI Express Root Port 24
ASPM 0
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
.
EDPC
Use this feature to enable or disable rootport extensions for Downstream Port Contain-
ment. The options are Disabled and
Enabled
.
