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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 feature 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 Enabled, Disabled, and Enable at End of POST (Power_On Self Test).
IIO Configuration
CPU1 Configuration/CPU2 Configuration
IOU0 (IIO PCIe Port 1)
Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU1 (IIO PCIe Port 2)
Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU3 (IIO PCIe Port 4)
Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
IOU4 (IIO PCIe Port 5)
Use this feature to configure the PCIe Bifurcation setting for a PCIe port specified by the
user. The options are x4x4x4x4, x4x4x8, x8x4x4, x8x8, x16, and Auto.
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Chapter 4: UEFI BIOS
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