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Memory Configuration
Enforce POR
Select POR (Plan of Record) to enforce POR restrictions on DDR4 frequency and volt-
age programming. The options are Auto,
Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory modules.
The options are Auto, 1066, 1333, 1666, 1866, 2133, 2666, and 2933.
Custom Refresh Enable
Use this feature to enable a custom memory controller refresh rate. The options are
Disable and Enable.
MC BGF Threshold
Use the HA to MC BGF threshold feature to schedule MC requests in bypass condition.
The default value is 0.
DLL Reset Test
Use this feature to set the number of loops to execute the Dynamic Link Library (DLL)
reset test. The test will execute the Rank Margin Test (RMT) for the provided number of
loops without DLL resets. Then it will execute RMT for the same number of loops with
DLL resets. The default value is 0.
Memory Topology
This feature displays the information of onboard memory modules as 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.
POR,
and Disable.
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Chapter 4: UEFI BIOS
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