Fujitsu HX2560 M1 User Manual page 92

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HX2560 M1/HX2560 M2
User's Manual
DIMM Information
CPU Socket 1 DIMM Information/ CPU Socket 2 DIMM Information
The status of the memory modules detected by the BIOS will be displayed as detected
by the BIOS.
Memory Mode
When Independent is selected, all DIMMs are available to the operating system.
When Mirroring is selected, the motherboard maintains two identical copies of all
data in memory for data backup. When Lock Step is selected, the motherboard uses
two areas of memory to run the same set of operations in parallel. The options are
Independent, Mirroring, and Lock Step.
DRAM RAPL Mode
RAPL (Running Average Power Limit) provides mechanisms to enforce power consump-
tion limits on supported processors The options are DRAM RAPL MODE0 , DRAM RAPL
MODE1, and Disabled.
DDR Speed
Use this feature to force a DDR3 memory module to run at a frequency other than
what is specified in the specification. The options are Auto, Force DDR3-800, Force
DDR3-1066, Force DDR3-1333, Force DDR3-1600, Force DDR3-1866 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.
Patrol Scrub
Patrol Scrubbing is a process that allows the CPU to correct correctable memory errors
detected on a memory module and send the correction to the requestor (the original
source). When this item is set to Enabled, the IO hub will read and write back one
cache line every 16K cycles, if there is no delay caused by internal processing. By us-
ing this method, roughly 64 GB of memory behind the IO hub will be scrubbed every
day. The options are Enabled and Disabled.
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