Hey everyone! I recently put together a new PC for a friend, and it's been running into some serious issues specifically with the GPU. Here's what I used for the build:
- Motherboard: Gigabyte Aorus Ultra B650i
- CPU: Ryzen 7 9700X
- RAM: Corsair Vengeance 32GB (16x2) 6000MT/s
- PSU: Corsair SF850
- GPU: Gigabyte RTX 4070 Super (bought in August 2024, worked daily until last week)
- Case: Fractal Terra
The main problem I'm facing is that during sessions, especially gaming, both monitors go black, the system crashes, and the GPU fans go full throttle. I'm quite sure this is GPU-related, but I've tried a number of troubleshooting steps already without luck:
- Tested individual RAM sticks
- Switched RAM slots
- Disabled EXPO/XMP
- Removed the PCIe riser and plugged the GPU directly into the motherboard
- Forced the PCIe slot to Gen 3
- Disabled Resizable BAR
- Updated and reinstalled NVIDIA drivers
It's worth noting that other GPUs work perfectly fine in this new build — my older EVGA 980ti and a newer RTX 5090 both run without crashes. The problematic RTX 4070 Super works perfectly in my own PC.
Could this be a compatibility issue with the B650i motherboard, power delivery, or perhaps something in the BIOS settings? I'd really appreciate any suggestions or insights you all might have!
2 Answers
It sounds like the PSU might be the problem here. Even if it worked fine with the RTX 5090, your 4070 Super might have a higher transient current draw, which can cause issues. You should definitely try lowering the GPU's power limit. If that stops the crashes, you’ll know the PSU isn’t handling it well.
You've pretty much eliminated all other possibilities except for the PSU. It might just be struggling with how the 4070 Super pulls power. Lowering the GPU's power limit could really help to test this theory. Let us know how it goes!
I’ll definitely keep you posted on that! Thanks for the advice!
Good point! I’ll give that a shot. I was just considering the NVIDIA app's settings to adjust it. Thanks for the tip!