Supermicro 2028UT-BC1NRT, User Manual, Page: 99 / 138

Chapter 7: AMI BIOS
7-21
PCI Express Global Options
Gen3 (Generation 3) Phase3 Loop Count
Use this feature to set the Loop-Count value for PCI-E Gen3 Phase3 operations.
The options are 1, 4,
16 , and 256.
Skip Halt On DMI Degradation
Select Enable to avoid the system being put on hold during DMI width/link
degradation. The options are
Disable
and Enable.
Power Down Unused Ports
Select Enable to disable the PCI-E ports that are not active. The options are
Disable , Enable, HSX Disable

QPI (Quick Path Interconnect) Configuration
QPI Status
The following information will display:
•
Number of CPU
•
Number of IIO
•
LInk Speed
•
Current QPI Link Frequency
•
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 the data transfer speed for QPI Link connections. The
options are
Fast and Slow.
Link Frequency Select
Use this feature to select the desired frequency for QPI Link connections. The
options are 6.4GB/s, 7.2GB/s, 8.0GB/s,
Auto,
and Use Per LInk Setting.