Super X10DRi, User Manual

Page: 79 / 117

Chapter 4: AMI BIOS
4-9
Coherency Support (Isoch)
Select Enable for the Iscoh VT-d engine to pass through ATS to enhance system
performance. The options are Enable and
Disable .

QPI (Quick Path Interconnect) Configuration
The following QPI information will be displayed:
•
Number of CPU
•
Number of II0
•
Current QPI Link Speed:
This item displays the current QPI Link speed.
•
Current QPI Link Frequency: This item displays the frequency of the QPI
Link.
•
QPI Global MMIO Low Base / Limit
•
QPI Global MMIO High Base / Limit
•
QPI PCI-E Configuration Base / Siz (Size)
Link Speed Mode
Use this feature to select data transfer speed for QPI Link connections. The op-
tions are
Fast and Slow.
Link Frequency Select
Use this feature to select the desired QPI frequency. The options are 6.4 GT/s,
8.0 GT/s, 9.6 GT/s,
Auto
, and Auto Limited.
Link L0p Enable
Select Enable to enable Link L0p. The options are Disable and Enable .
Link L1 Enable
Select Enable to enable Link L1 (Level 1 link). The options are Disable and
Enable .
Isoc Mode
Select Enabled to enable Isochronous support to meet QoS (Quality of Service)
requirements. This feature is especially important for Virtualization Technology.
The options are Enable and
Disable .