Supermicro SuperServer 1017R-WR User Manual page 107

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UPER ERVER 1017R-WR User's Manual
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 Lockstep is selected, the motherboard uses
two areas of memory to run the same set of operations in parallel. The options are
Independent, Mirroring, Lockstep and Sparing.
DDR Speed
Use this feature to force a DDR3 memory module to run at a frequency other than
what the system is specified in the specification. The options are Auto, Force DDR3-
800, Force DDR3-1066, Force DDR3-1333, Force DOR3-1600 and Force 1866.
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 op-
tions 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 pro-
cessing. 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 scrubbing and ensure data security and integrity.
The options are Disabled and Enabled.
Device Tagging
Select Enabled to support device tagging. The options are Disabled and Enabled.
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