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Correctable Error Threshold
Use this item to enter the threshold value for correctable memory errors. The default setting
is 10.
SDDC Plus One
Select Enable for SDDC (Single Device Data Correction) support, which will increase the
reliability and serviceability of your system memory. The options are Enable and Disable.
ADDDC (Adaptive Double Device Data Correction) Sparing
Select Enable for ADDDC sparing support to enhance memory performance. The options
are Enable and Disable.
Patrol Scrub
Patrol Scrubbing is a process that allows the CPU to correct correctable memory errors
detected in a memory module and send the corrections to the requestor (the original
source). When this item is set to Enable, 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
Enable and Disable.
Patrol Scrub Interval
Use this item to specify the number of hours (between 0 to 24) required for the system to
complete a full patrol scrubbing. Enter 0 for patrol scrubbing to be performed automatically.
The default setting is 24.
Note: This item is hidden when Patrol Scrub item is set to Disable.
IIO Configuration
CPU1 Configuration
IOU0 (II0 PCIe Br1)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (II0 PCIe Br2)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU2 (II0 PCIe Br3)
This item configures the PCI-E port Bifuraction setting for a PCI-E port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
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Chapter 6: BIOS
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