Chapter 6 UEFI BIOS
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CPU T State Control
Software Controlled T-States
If this feature is set to Enable, CPU throttling settings will be supported by the software
of the system.
The options are
Enable
and Disable.
Chipset Configuration
North Bridge
This feature allows the user to configure the settings for the Intel North Bridge.
UPI (Ultra Path Interconnect) General Configuration
This section displays the following UPI General Configuration information:
•
Number of CPU
•
Number of Active UPI Link
•
Current UPI Link Speed
•
Current UPI Link Frequency
•
UPI Global MMIO Low Base/Limit
•
UPI Global MMIO High Base/Limit
•
UPI PCI-E Configuration Base/Size
Degrade Precedence
Use this feature to select the degrading precedence option for Ultra Path Interconnect
connections. Select Topology Precedent to degrade UPI features if system options are
in conflict. The options are
Topology Precedence
and Feature Precedence.
Link L0p Enable
Select Enable to enable Link L0p. The options are Disable, Enable, and
Auto
.
Link L1 Enable
Select Enable to enable Link L1 (Level 1 link). The options are Disable, Enable, and
Auto
.
IO Directory Cache (IODC)
Select Enable for the IODC (I/O Directory Cache) to generate snoops instead of gen-
erating memory lockups for remote IIO (InvIToM) and/or WCiLF (Cores). Select Auto
for the IODC to generate snoops (instead of memory lockups) for WCiLF (Cores). The
options are Disable,
Auto
, Enable for Remote InvItoM Hybrid Push, InvItoM AllocFlow,
Enable for Remote InvItoM Hybrid AllocNonAlloc, and Enable for Remote InvItoM and
Remote WViLF.