Chapter 4: BIOS
73
Chipset Confi guration
North Bridge
This feature allows the user to confi gure the settings for the Intel North Bridge.
UPI (Ultra Path Interconnect) Confi guration
This section displays the following UPI General Confi guration 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 Confi guration Base/Size
Degrade Precedence
Use this feature to select the degrading precedence option for UPI (Ultra Path Interconnect)
connections. Select Topology Precedent to degrade UPI features if system options are in
confl ict. Select Feature Precedent to degrade UPI topology if system options are in confl ict.
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 to generate snoops instead of generating 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.
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