I was trying to do a fresh driver installation and used Display Driver Uninstaller (DDU). Everything seemed normal during the reboot, and I can hear sounds after booting into Windows, but neither of my monitors is detecting any signal. I've tried various things like switching monitors and cables, removing the CMOS battery, reseating the GPU, and trying different DisplayPort slots. I even toggled the alternative VBIOS on my GPU, but I still get no signal. The GPU lights up and the fans are running, but I can't even get into the BIOS. I'm really confused—did my GPU just fail at the same time? I can't test with another GPU since I don't have one, and my setup is a 3090 with a B550 Tomahawk motherboard and a 5900X CPU that's been working well for years.
4 Answers
Honestly, I've had bad experiences with DDU as well. It seems unlikely that a GPU would just fail at the exact moment of running it, but it could be possible. If you've tried the other PCIe slots and nothing worked, you may need to have the GPU tested somewhere else to see if it’s a motherboard or GPU issue.
If you turned off Windows automatic driver updates, you might be able to boot from a Windows install USB and do a repair. However, considering you can't even see the BIOS, it seems more like a hardware issue with the GPU. Trying a different PCIe slot might work too if you haven't done that yet.
It sounds like a tough situation! Just to clarify, DDU only removes drivers needed for Windows, so it shouldn't affect the BIOS display at all. It's possible your GPU coincidentally failed right as you were running DDU. If you can’t get any signal at all, I'd suggest checking if the power cables to your GPU are securely connected. Also, have you tried resetting the BIOS? Sometimes those settings can need a manual reset after something like this.
That's what I thought! It's just strange that everything would fail at once. I'll double-check the connections and see if resetting the BIOS might help.
You should still be able to see something on the screen from the BIOS. Since you aren't getting an image there, it might indicate your GPU isn't recognized by the motherboard anymore. Have you checked all GPU power connections? Also, resetting the BIOS could be a good move—your motherboard manual should have instructions for that.
I just tried another slot, but still no luck. Looks like I might have to head to a store to get it checked out.