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Asked: 2024-09-27T16:31:57+05:30

I am facing an issue with my ASRock UEFI firmware where it fails to detect GPT partitions unless CSM is enabled. Is there a solution to get the UEFI to recognize GPT without relying on Compatibility Support Module?

I’m hoping someone here can help me out with a frustrating issue I’m having with my ASRock motherboard’s UEFI firmware. So here’s the deal: I’ve been trying to install a new operating system, and everything seems to be going smoothly until it comes to recognizing my GPT partitions. It turns out that the UEFI just won’t detect them unless I have the Compatibility Support Module (CSM) enabled.

At first, I thought it was just a simple setup issue, but it looks like this is a more common problem with certain ASRock UEFI versions. I get that CSM is there to help with legacy hardware and older operating systems, but I really want to take full advantage of the UEFI capabilities and boot natively with GPT. Is there a way to get the UEFI to recognize GPT partitions without having to rely on CSM?

I’ve already tried a few things, like checking the BIOS settings and making sure the partitions were formatted correctly. I even went through the whole process of converting the drive to GPT again just to double-check. But no luck! It seems like I can only get things to work with CSM enabled, which isn’t ideal since I’ve read that this can slow things down and might not support certain features I want to use.

Has anyone else run into this issue? If so, how did you manage to resolve it? I’m really hoping to get some solid advice or tips on adjusting the firmware settings or anything else that could help my UEFI recognize those GPT partitions without CSM. Also, if there are any firmware updates or specific configurations I should try, please let me know! I’m all ears for any solutions or workarounds anyone might have. Thanks in advance for your help!

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    2 Answers

    1. It sounds like a really frustrating issue you’re facing! I totally get why you’re keen on using UEFI and GPT without the Compatibility Support Module (CSM). It can definitely be annoying when things don’t work as expected.

      Here are a few things you might try to get your UEFI firmware to recognize those GPT partitions:

      • Check UEFI Boot Mode: Make sure your UEFI mode is enabled and that you aren’t defaulting to Legacy mode. Sometimes, switching between UEFI and Legacy can make a difference.
      • Partition Structure: Double-check that your partitions are set up correctly. You’ll want an EFI System Partition (ESP) formatted as FAT32. This partition should be around 100-200 MB and marked as a primary partition.
      • Secure Boot: Try toggling Secure Boot settings. Sometimes disabling it can help, especially with certain configurations.
      • Firmware Update: Look for firmware updates for your motherboard on the ASRock website. Newer versions sometimes fix these detection issues.
      • Reset to Defaults: As a last resort, try resetting your UEFI settings to factory defaults and then make the necessary adjustments to enable UEFI and disable CSM.

      If you’ve already done all this and still can’t get it to work, it might be worth checking out forums or community boards specific to ASRock motherboards. Someone might have found a workaround or a specific setting that helps with your model.

      Good luck! Hopefully, you’ll get your GPT partitions recognized by UEFI soon!

    2. It sounds like you’re encountering a common issue with ASRock motherboards and UEFI firmware not recognizing GPT partitions unless CSM is enabled. One potential solution is to ensure that the drive you are installing the operating system to is properly formatted with a GPT layout. Additionally, verify that the UEFI firmware settings are configured to boot in UEFI mode exclusively, without CSM enabled. You may find an option in the BIOS to switch from “Legacy” to “UEFI only” or “Secure Boot,” which can sometimes help with recognizing GPT partitions automatically. Make sure to disable Secure Boot temporarily if it’s causing issues during installation, but remember to re-enable it once everything is set up.

      If you have already checked the typical options and the installation still doesn’t detect GPT, consider updating your UEFI firmware to the latest version, as updates often address bugs related to hardware compatibility. Look for fixes specifically related to partition recognition or boot issues in the release notes. If an update or a setting adjustment does not resolve the issue, some users have found success by using a different USB drive with the OS installer, as sometimes hardware inconsistencies can cause detection failures. As a last resort, you may also consider reaching out to ASRock support or browsing community forums for specific BIOS settings that have worked for others facing similar issues.