Supermicro X9DRW-7TPF+ User Manual download pdf (Page 91)

Chapter 4: AMI BIOS

4-13

uses two areas of memory to run the same set of operations in parallel. The

options are Independent, Mirroriing, and Lockstep.

DRAM RAPL Mode

RAPL (Running Average Power Limit) provides mechanisms to enforce power

consumption limits on supported processors The options are Disabled, DRAM

RAPL MODE0, and DRAM RAPL MODE1.

DDR Speed

Use this feature to force a DDR3 memory module to run at a frequency other than

what is specied in the specication. The options are Force DDR3-800, Force

DDR3-1066, Force DDR3-1333, Force DDR3-1600 and Force SPD, and Auto.

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 using this method, roughly 64 GB of memory behind the IO hub

will be scrubbed every day. The options are Enabled and Disabled.

Demand Scrub

Demand Scrubbing is a process that allows the CPU to correct correctable

memory errors found on a memory module. When the CPU or I/O issues a

demand-read command, and the read data from memory turns out to be a

correctable error, the error is corrected and sent to the requestor (the original

source). Memory is updated as well. Select Enabled to use Demand Scrubbing

for ECC memory correction. The options are Enabled and Disabled.

Data Scrambling

Select Enabled to enable data scrambling to ensure data security and integrity.

The options are Disabled and Enabled.

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Supermicro X9DRW-7TPF+ User Manual Page 91