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Memory Configuration
This feature allows the user to configure the Integrated Memory Controller (iMC) settings.
STEP DRAM Test
Set Enable or Disable STEP (Samsung TestBIOS & Enhanced PPR) function. The op-
tions are Disable and Enable.
Enforce POR (Plan of Record)
Select POR to enforce POR restrictions for DDR4 memory frequency and voltage pro-
gramming. The options are POR and Disable.
PPR Type
Post Package Repair (PPR) is a new feature available for the DDR4 Technology. PPR
provides additional spare capacity within a DDR4 DRAM module that is used to replace
faulty cell areas detected during system boot. PPR offers two types of memory repairs.
Soft Post Package Repair (sPPR) provides a quick, temporary fix on a raw element in a
bank group of a DDR4 DRAM device, while hard Post Package Repair (hPPR) will take
a longer time to provide a permanent repair on a raw element. The options are Soft PPR,
Hard PPR, and PPR Disabled.
Memory Frequency
Use this feature to set the maximum memory frequency for onboard memory modules.
The options are Auto, 2133, 2200, 2400, 2600, 2666, 2800, 2933, 3000, and 3200.
Data Scrambling for DDR4
Select Enable to enable data scrambling for Intel Optane Persistent Memory (PMem)
modules to enhance memory data security. Select Auto to use the Memory Reference
Code (MRC) defaulting setting for PMem memory data scrambling. The options are En-
able and Disable.
2X Refresh Enable
Select Enable for memory 2X refresh support to enhance memory performance. The
options are Disable, Enable, and Auto.
Memory Topology
This item displays the information of onboard memory modules as detected by the BIOS,
for example:
•
P1-DIMMC1
•
P2-DIMMC1
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Chapter 4: UEFI BIOS
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