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Chapter 7: BIOS
Sparing
This item displays if memory sparing is supported by the serverboard. Memory
sparing enhances system performance.
DIMM Information
The status of the memory modules detected by the BIOS is displayed.
Memory Mode
When Independent is selected, all DIMMs are available to the operating
system. When Mirroring is selected, the serverboard maintains two identical
copies of all data in memory for data backup. When Lock Step is selected,
the serverboard uses two areas of memory to run the same set of operations
in parallel. The default setting is Independent.
DRAM RAPL Mode
RAPL (Running Average Power Limit) provides mechanisms to enforce power
consumption limits on supported processors The options are DRAM RAPL
MODE0 , DRAM RAPL MODE1, and Disabled.
Memory Energy/Performance
Use this feature to determine the parameters for memory module energy
consumption. Select Performance to maintian optimal functionality or select
Energy Saving to reduce power consumption. The options are Performance
and Energy Saving.
DDR Speed
Use this feature to force a DDR3 memory module to run at a frequency
other than what is specifi ed in the specifi cation. The options are Auto, Force
DDR3-800, Force DDR3-1066, Force DDR3-1333, Force DDR3-1600 and
Force SPD.
Channel Interleaving
This feature selects from the different channel interleaving methods. The
options are Auto, 1 Way, 2 Way, 3, Way, and 4 Way.
Rank Interleaving
This feature allows the user to select a rank memory interleaving method.
The options are Auto, 1 Way, 2 Way, 4, Way, and 8 Way.
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