Supermicro X11DPT-PS User Manual page 67

Data Scrambling for DDR4
Select Enable to enable data scrambling for DDR4 memory to enhance system performance
and security. The options are Auto, Disable, and Enable.
tCCD_L Relaxation
If this feature is set to 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 Enable and Disable.
Enable ADR
Select Enable for ADR (Automatic Diagnostic Repository) support to enhance memory
performance. The options are Enable and Disable.
2X Refresh
Select Enable for memory 2X refresh support to enhance memory performance. The options
are Enable and Auto.
Memory Topology

This item displays the information of onboard memory modules as detected by the
BIOS.
•
P1 DIMMA1/P1 DIMMA2 to P1 DIMMF1/P1 DIMMF2
•
P2 DIMMA1/P2 DIMMA2 to P2 DIMMF1/P2 DIMMF2
Memory RAS (Reliability_Availability_Serviceability) Confi guration

Use this submenu to confi gure the following Memory RAS settings.
Static Virtual Lockstep Mode
Select Enable to support Static Virtual Lockstep mode to enhance memory performance.
The options are Enable and Disable.
Mirror Mode
Use this feature to confi gure the mirror mode settings for all 1LM/2LM memory modules
installed in the system which will create a duplicate copy of data stored in the memory to
increase memory security, but it will reduce the memory capacity into half. The options are
Disable, Mirror Mode 1LM, and Mirror Mode 2LM.
UEFI ARM Mirror
If this feature is set to Enable, mirror mode confi guration settings for UEFI-based Address
Range memory will be activated upon system boot. This will create a duplicate copy of data
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Chapter 4: BIOS