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Q (Q&A-188|549): I am looking for Pre-boot DMA Protection option, but I cannot find it in the BIOS interface. Where can I locate this option?(12/16/2025)
A:The option name varies across different platforms. Please refer to the following screenshots to identify the correct option and its location in the BIOS menu.

Intel platform

● Intel 600, 700 series
Intel 600, 700 series

● Intel 800 series
Intel 800 series

Note:
Please first update BIOS to the latest version to obtain this option on Intel 600, 700 and 800 platforms.

AMD Platform

● AM4 series
AM4 series

● AM5 series
AM5 series

Users can enable this option if they encounter game‑related or security‑related problems.

#DMA #Pre-boot #IOMMU #DMA Protection