Supermicro X11SPi-TF User Manual page 81

Chapter 4: BIOS
Local/Remote Threshold
This feature allows the user to set the threshold for the Interrupt Request (IRQ) signal.
The options are Disable, Auto, Low, Medium, and High.
Stale AtoS
Use this feature to optimize the A to S directory. The options are Disable, Enable, and
Auto.
LLC Dead Line Alloc
Select Enable to optimally fill dead lines in LLC. The options are Disable, Enable, and
Auto.
Isoc Mode
Isochronous (Isoc) mode allows time-sensitive processes to be given priority. The options
are Disable, Enable, and Auto.
Memory Configuration

Enforce POR
Select POR (Plan of Record) to enforce POR restrictions on DDR4 frequency and volt-
age programming. The options are POR and Disable.
PPR Type
Use this feature to set the Post Package Repair type. The options are Auto, Hard PPR,
Soft PPR, and PPR Disable.
Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory modules.
The options are Auto, 1866, 2000, 2133, 2200, 2400, 2600, 2666, and 2933.
Data Scrambling for DDR4
Use this feature to enable or disable data scrambling for DDR4 memory. The options
are Auto, Disable, and Enable.
tCCD_L Relaxation
If this feature is enable, SPD (Serial Presence Detect will override TCCD_L ("Column
to Column Delay-Long" or "Command to Command Delay-Long" on the column side). If
this feature is set to Disable, TCCD_L will be enforced based on the memory frequency.
The options are Disable and Auto.
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