Chapter 4: BIOS
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Memory Conguration
Enforce POR
Select POR (Plan of Record) to enforce POR restrictions on DDR4 frequency and volt-
age programming. The options are POR and 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, and 2666.
Data Scrambling for NVDIMM
Use this festure to enable or disable data scrambling for non-volatile DIMM (NVDIMM)
memory. The options are Auto, Disable, and Enable.
Data Scrambling for DDR4
Use this festure to enable or disable data scrambling for DDR4 memory. The options are
Auto, Disable, and Enable.
tCCD_L Relaxation
Select Enable to get TCDD settings from SPD (Serial Presence Detect) and implement
into memory RC code to improve system reliability. Select Disable for TCCD to follow
Intel POR. The options are Disable and Enable.
Enable ADR
Select Enable for ADR (Automatic Diagnostic Repository) support to enhance memory
performance. The options are Disable and Enable.
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 DIMM population information.
Memory RAS Conguration
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.
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