Supermicro X12SDV-4C-SPT4F User Manual page 69

Chipset Configuration

Warning: Setting the wrong values in below sections may cause system to malfunction.
North Bridge
Uncore Configuration

Uncore Configuration
•
Number of CPU
•
Number of IIO
•
Current UPI Link Speed
•
Current UPI Link Frequency
•
Global MMIO Low Base / Limit
•
Global MMIO High Base / Limit
•
PCIe Configuration Base / Size
XPT Prefetch
Use this feature to enable or disable XPT Prefetch support, which allows an LLC request
to be duplicated and sent to an appropriate memory controller based on the recent LLC
history to reduce latency. The options are Disable, Enable, and Auto.
PCIe Remote P2P Relaxed Ordering
Enable peer-to-peer relaxed ordering to optimize system performance. The options are
Disable and Enable.
Stale AtoS
Use this feature to enable or disable Stale A to S optimization. There are three states
in the in-memory directory: invalid (I), snoopAll (A), and shared (S). Data in the I state
is clean and does not exist in other sockets. Data in the A state may exist in another
exclusive or modified socket. Data in the S state is clean and may be shared across one
or more sockets. The options are Disable, Enable, and Auto.
LLC Dead Line Alloc
Select Enable to opportunistically fill dead lines in the LLC. Select Disable to never fill
dead lines in LLC. The options are Disable, Enable, and Auto.
69
Chapter 4: UEFI BIOS