Hey everyone! I've been facing a frustrating issue with my PC. While I'm gaming, my monitor suddenly goes black and displays a 'no signal' message. I can still hear sound and chat in Discord, but there's no video output. I noticed in the BIOS that the 5v rail is pulling 10.2v, but after testing the PSU with a multimeter, everything seems fine. I'm worried it could be a motherboard issue or a problem with my GPU power cables. The most consistent trigger for this issue is playing Counter Strike 2 and interacting with the UI. I've tried almost everything, except testing new parts since I don't have spares. Additionally, I've noticed that my CPU cooler sometimes fails to report temperatures right before I lose video signal. My main suspects are the PSU or motherboard, though my stress tests show that the GPU and CPU are functioning well. If anyone has insights into what might be causing this, I'd really appreciate it! Here are my specs:
- Motherboard: ROG STRIX B550-A GAMING
- RAM: Corsair Vengeance 32GB 3200Mhz
- GPU: ZOTAC GAMING GeForce RTX 3080 Trinity 10GB
- CPU: Ryzen 7 5700x
- PSU: EVGA SuperNOVA 1000 GQ 1000W
2 Answers
Honestly, I think what you're experiencing might be a GPU driver bug. Given the TDR failure and black screen symptoms, it sounds similar to issues that people have had with both AMD and nVidia drivers. Unfortunately, you're mostly left trying different driver versions to see if one of them is stable. Hopefully, nVidia will release a fix soon, but until then, this might be the only route to explore.
It sounds like you're dealing with a Video Engine Timeout error, which often points to a fault with the GPU. If you've ruled out driver issues and checked for loose connections, it’s likely a hardware fault. When you were undervolting, did you set a power limit? Also, watch the GPU's power consumption when it crashes. If it’s peaking, your PSU might not be delivering enough power. You might also want to try switching the GPU to the second PCIe x16 slot if you haven't already; it could give you a clearer idea of whether the problem is with the GPU or the motherboard.
I reverted the undervolt back to default speeds and have tried the second PCIe slot, but it didn’t help. Plus, my GPU seems to be showing a memory clock error in monitoring software. I'm worried about inadequate power draw from the PSU since I haven’t tested new GPU power cables yet. I also observed that my motherboard is incorrectly reporting the 5v rail as 10.2v. I'm trying to eliminate every possible cause before assuming it's the GPU, as I can't afford a new one. Thanks for your input!
Testing the PSU cables could help clarify things, especially if you suspect the 5v issue. Sometimes it’s just a bad cable or connector causing power delivery problems. Keep looking for those alternative explanations before jumping to replace the GPU!