Chapter 4: BIOS
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Select Owner EPOCH input type
There are three Owner EPOCH modes (each EPOCH is 64 bit). The options are
No Change
in Owner EPOCHs
, Change to New Random Owner EPOCHs, and Manual User Defined
Owner EPOCHs.
PRMRR Size
This BIOS must reserve a contiguous region of Processor Reserved Memory (PRM) in the
Porcessor Reserved Memory Range Register (PRMRR). This feature appears if SW Guard
Extensions is set to Enabled. The options are 32MB, 64MB, and
128MB
.
GNA Device (B0:D8:F0)
Use this feature to enable SA GNA device. The options are
Enable
and Disable.
X2APIC Opt Out
Use this feature to enable or disable X2APIC Opt Out. The options are
Disable
or Enable.
PCH-IO Configuration
The following PCH-IO information will display:
•
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
PCH SLOT5 PCI-E 3.0 X4
PCH SLOT6 PCI-E 3.0 X1
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
.
