Chapter 4: AMI BIOS

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.

Device Tagging

Select Enabled to support device tagging. The options are Disabled and En- abled.

Thermal Throttling

Throttling improves reliability and reduces power consumption in the proces- sor via automatic voltage control during processor idle states. The options are Disabled and CLTT (Closed Loop Thermal Throttling).

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SUPER MICRO Computer X9DRG-HTF Channel Interleaving, Rank Interleaving, Patrol Scrub, Demand Scrub, Data Scrambling