Chapter 4: AMI BIOS
4-9
DIMM Conguration
Memory Conguration
This section displays memory status such as Current Memory Mode,
Memory Speed, Mirroring and Sparing information.
DIMM Information
This feature displays information regarding the installed memory.
Memory Mode
The options are Independent, Mirroring, Lockstep and Sparing.
Independent - All DIMMs are available to the operating system.
Mirroring - The motherboard maintains two identical copies of all data in
memory for redundancy.
Lockstep - The motherboard uses two areas of memory to run the same
set of operations in parallel.
Sparing - A preset threshold of correctable errors is used to trigger fail-
over. The spare memory is put online and used as active memory in place
of the failed memory.
DRAM RAPL Mode
RAPL which stands for Running Average Power Limit is a feature that
provides mechanisms to enforce power consumption limits on supported
processors The options are DRAM RAPL MODE0 , DRAM RAPL MODE1,
and Disabled.
DDR Speed
Use this option to force the system memory to run at a different frequency
than the default frequency. The available options are Auto, Force DDR-
800, Force DDR-1066, Force DDR-1333, Force DDR3-1600 and Force
SPD.
Channel Interleaving
This feature selects from the different channel memory interleaving meth-
ods. The options are Auto, 1 Way, 2 Way, 3 Way and 4 Way.
Rank Interleaving
This feature selects from the different rank memory interleaving methods.
The options are Auto, 1 Way, 2 Way, 3 Way, 4 Way and 8 Way.
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