Chapter 6 UEFI BIOS
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IMC Interleaving
Use this feature to configure interleaving settings for the Integrated Memory Controller
(IMC), which can improve memory performance.
The options are
Auto
, 1-way Interleave,
or 2-way Interleave.
Data Scrambling for DDR4
Select Enable to enable data scrambling for DDR4 memory to enhance system perfor-
mance 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, Enable, and
Auto
.
tRWSR Relaxation
Select Enable to use the same tRWSR (Read to Write turnaround time for Same Rank)
DDR timing setting among all memory channels, and in which case, the worst case value
among all channels will be used. Select Disable to use different values for the tRWSR
DDR timing settings for different channels as trained.
If enabled, the tRWST timing is
overridden by optimized value. If Auto, the override only applies to Samsung's DIMM.
The options are Auto, Disable, and
Enable
.
Enable ADR
Select Enable for ADR (Automatic Diagnostic Repository) support to enhance memory
performance. The options are Enable and
Disable
.
2X REFRESH
Select 2X refresh mode.
Auto
means CLTT Low 1X refresh, CLTT Mid 2X refresh; Enable
means CLTT Low/Mid 2X refresh; Disable means CLTT Low/Mid 1X refresh.
Page Policy
Use this feature to set the page policy for onboard memory support. The options are
Auto
, Closed, and Adaptive.
Memory Topology
This item displays the information about memory modules as detected by the BIOS,
listed by the motherboard memory slot labels.