Hey everyone, I'm facing a bit of a dilemma with my Ryzen 7 5700X3D CPU. It doesn't seem to work when I have both Legacy + UEFI and CSM enabled in my BIOS settings. The frustrating part is that these settings reset to default whenever I try to change the CPU. My motherboard is the B450M Mortar Max, and it should be compatible with the correct BIOS version that I already updated. I'm running Windows 11 with GPT partitioned drives, which I believe is necessary. I've managed to get it working a few times before, but lately, it won't post after booting up, and I suspect it's due to those BIOS options re-enabling on their own. Any help would be appreciated!
1 Answer
It sounds like those BIOS settings could definitely be causing Windows not to load, but they should at least let you access the BIOS. I recommend removing the CMOS battery to reset the BIOS to defaults and see if that helps you post. If it does, you can try adjusting your settings again carefully afterward.
I've removed the CMOS battery several times before, but it never seemed to fix the problem. I’ll definitely give it another go next time I have the CPU installed. Any other ideas on what might be causing the issue?