The CSM feature on ASRock enables legacy BIOS support in the UEFI firmware. It is only possible to enable pure UEFI firmware mode when this feature is Off.. Note: If you want to disable CSM and enable UEFI mode, your OS disk needs to have the GPT partition scheme. So if you have an MBR disk, you need to convert it to GPT using the MBR2GPT.. Set the CSM support to enabled or disabled based on your preference and then go to the Power tab and click on Save & Exit Setup option. How to Enable or Disable CSM support in ASRock motherboard? Restart your PC and press the F2 key to enter BIOS and switch to the Boot tab and scroll down to the CSM option and see if it is enabled or disabled.
Absolutely! Here's a quick guide to turning off CSM in the Asrock setup: 1. Restart your computer and access the BIOS setup by pressing the designated key (usually Del or F2) during startup. 2. Go to the Boot tab in the BIOS setup menu. 3. Locate the CSM (Compatibility Support Module) option and set it to Disabled. 4.. I'm Unable to disable the CSM I have updats the BIOS to 1.61 and done the following: - Step1. Disable CSM at the path Boot\CSM (Compatibility Support Module) in the BIOS. Then press F10 to save the settings and restart. Step2. Set Secure Boot Mode to ?œCustom?? then click ?œInstall default Secure Boot keys??at Security\Secure Boot page under.