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Home>Guide>Hardware>CSM Option Greyed Out in BIOS
Hardware

CSM Option Greyed Out in BIOS

Tony
August 30, 2023

If you are trying to enable legacy boot in your BIOS, you may find that the option is greyed out.

You might want to enable this if your device doesn’t support UEFI and instead uses MBR.

The solution: Ensure your dedicated GPU is plugged into the motherboard.

Compatibility Support Mode is not supported without using a dedicated graphics card, so make sure that you have one plugged in before trying to enable this (usually in order to enable your boot device to function properly).

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