Chapter 4: UEFI BIOS
81
Memory Topology
This item displays the information of onboard memory modules as detected by the
BIOS.
•
P1DIMMA1/P1DIMMB1/P1DIMMC1/P1DIMMD1/P1DIMME1/P1DIMMF1
•
P2DIMMA1/P2DIMMB1/P2DIMMC1/P2DIMMD1/P2DIMME1/P2DIMMF1
Memory RAS (Reliability_Availability_Serviceability) Configuration
Use this submenu to configure the following Memory RAS settings.
Static Virtual Lockstep Mode
Select Enable to support the Static Virtual Lockstep mode to enhance memory performance.
The options are Enable and
Disable
.
Mirror Mode
Use this feature to configure the mirror mode settings for all 1LM/2LM memory modules
installed in the system which will create a duplicate copy of data stored in the memory to
increase memory security, but it will reduce the memory capacity into half. The options are
Disable
, Mirror Mode 1LM, and Mirror Mode 2LM.
Note
: The setting for this feature can be edited when the item below: ADDDC Sparing is
set to Disable.
UEFI ARM Mirror
If this feature is set to Enable, mirror mode configuration settings for UEFI-based Address
Range memory will be enabled upon system boot. This will create a duplicate copy of data
stored in the memory to increase memory security, but it will reduce the memory capacity
into half. The options are
Disable
and Enable.
Note
: The setting for this feature can be edited when both ADDDC Sparing and Mirror
Mode are set to Disable.
Memory Rank Sparing
Select Enable to support memory-rank sparing to optimize memory performance. The
options are Enable and
Disable
.
Notes. 1
: This feature can will not be available when the item: Memory Mirror Mode is set
to Enabled.
2:
When this feature: Memory Rank Sparing is set to Enabled, the following
item will be available:
Multi Rank Sparing (Available when Memory Rank Sparing is set to Enable)
Use this feature to set the multiple rank sparing number. The default setting and the
maximum is two ranks per channel. The options are One Rank and
Two Rank
.
