Supermicro B2SD2-8C-TF User Manual page 55

tCCD_L Relaxation
Select Auto to get TCDD settings from SPD (Serial Presence Detect) into memory RC
code to improve system reliability. Select Disable for TCCD to follow Intel POR. The op-
tions are Disable and Auto.
2X REFRESH
Use this feature to select the memory controller refresh rate to 2x refresh mode. The
options are Auto and Enable.
 Memory Topology
This feature displays the information of onboard memory modules detected by the
BIOS.
Memory RAS Configuration

Static Virtual Lockstep Mode
Select Enable to run the system's memory channels in lockstep mode to minimize
memory access latency. The options are Disable and Enable.
Mirror mode
This feature allows memory to be mirrored between two channels, providing 100%
redundancy. The options are Disable and Enable Mirror Mode (1LM).
Memory Rank Sparing
Select Enable to enable memory-sparing support for memory ranks to improve memory
performance. The options are Disable and Enable.
*If the feature above is set to Enable, Multi Rank Sparing will be available for
configuration:
Multi Rank Sparing
Use this feature to indicate how many memory ranks to reserve in case of memory
failure. The options are One Rank and Two Rank.
Correctable Error Threshold
Use this feature to specify the threshold value for correctable memory error logging,
which sets a limit on the maximum number of events that can be logged in the memory
error log at a given time. The default setting is 100.
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Chapter 4: BIOS