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Chapter 4: BIOS
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, and 2666.
Data Scrambling for NVDIMM
Select Enable to enable data scrambling for onboard NVDIMM memory to enhance system
performance and security. The options are Auto, Disable, and Enable.
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 enabled, 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.
tRWSR Relaxation
Select Enable to use the same tRWSR DDR timing setting among all memory channels,
in which case, the worst value among all channels will be used. Select Disable to use
different values for the tRWSR DDR timing settings for different channels as trained. The
options are Disable and Enable.
Enable ADR (Available when an NVDIMM is detected)
Select Enable for ADR (Automatic Diagnostic Repository) support to enhance memory
performance. The options are Enable and Disable.
Erase-Arm NVDIMMs (Available when an NVDIMM is detected & the item above:
Enable ADR is set to Enable)
If this feature is set to Enable, the function that arms the NVDIMMs for save operations in
the event of a power loss will be removed. The options are Enable and Disable.
Restore NVDIMMs (Available when an NVDIMM is detected & the item above: Enable
ADR is set to Enable)
Select Enable to restore the functionality and the features of NVDIMMs. The options are
Enable and Disable.
Interleave NVDIMMs (Available when an NVDIMM is detected & the item above: Enable
ADR is set to Enable)
Select Enable for NVDIMM interleaving support to enhance NVDIMM performance. The
options are Enable and Disable.
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