Had a new build fail to POST because of one stupid BIOS setting I forgot to check

I just spent 3 hours trying to figure out why my Ryzen 5 5600 system wouldn't get past the motherboard logo. Turns out, I had the CSM disabled but my old GTX 970 doesn't support UEFI mode. Swapped to a newer GPU and it booted right up. Has anyone else hit a wall with legacy hardware and BIOS settings like that?

2 comments

2 Comments

hall.ruby12d ago

Old GTX 970s are still great cards but they're definitely showing their age with modern motherboards. Had a similar issue where a friend's R9 390 refused to work on a B550 board until we found a beta BIOS that added legacy compatibility.

susan_wells12d agoMost Upvoted

You know, it's funny you mention that because it reminds me of how everything seems to have this weird backward compatibility gap now. My uncle still uses his old Xbox 360 controller for PC games and it works fine, but try plugging a PS2 keyboard into a new laptop and half the time the ports don't even recognize it. It's like manufacturers just assume everyone upgrades everything at the same time, but real life doesn't work that way. People hold onto stuff for years, sometimes a decade or more, and then you're stuck hunting through forum posts at 2 AM for some obscure BIOS setting. Makes you wonder if they design this stuff on purpose to force you into buying new parts.