Question Somebody save me! PC won't boot when GPU is powered ?

[mkhan3]

Hello all. Desperate here, I hope someone can help!

Recently become the very happy owner of a new build. Worked great for 2 months. Yesterday mid game my monitor turned green and the pc crashed.

Now my PC won't boot. Everything lights and spins up except the RGB AIO pump and the display remains dark. The DRAM and CPU lights stay on for a bit then disappear and I can hear the GPU fans spin up.


The interesting part: The PC boots fine if the PSU power cables aren't plugged into the GPU.


Things I have tried:

- New PSU and cables
- Reset CMOS battery by taking it out and putting it back in
- Booting into Windows using the IGPU, running DDU and installing the latest AMD GPU drivers
- Changing PCI bios settings from auto to PCI-3
- Tried GPU in secondary PCI slot

Where I'm at:

After much research and hours of tinkering I've arrived at the conclusion that either something in my GPU has shorted or something went wrong with my motherboard PCI-E lane. Unfortunately I do not have another system to test my GPU nor do I have another GPU to test my motherboard with. Additional note, the initial crash occurred 30 minutes after an adrenaline driver update.

If anyone has any suggestions on how to fix this issue or even narrow down between my GPU and MB. I was about to have a lighter month at work and was really looking forward to gaming. If it's my GPU, the RMA process will take weeks if it not months.

PC Specs:
- 7800x3D
- Merc 310 7900xtx black edition
- Galahad II AIO
- Vengeance 32gb DDR5
- MSI v850 SFX / Corsair 1000SFL

It's been a frustrating day, hopefully someone can help me out.

 

[Eugene$$]

Get some other gpu to test that

 

[mkhan3]

Get some other gpu to test that

Unfortunately I don't have access to another GPU. Im at a loss for ideas. I'm trying to start the RMA process but still have hope there's something I can figure out. Potentially will buy another motherboard tomorrow just to test it out.

 

[thestryker]

There isn't a very convenient way to figure out between mobo/GPU without any spares.

If you have any other type of PCIe card you could confirm the slot itself works, but I doubt you'd have anything with 16 lanes to test with so it'd be of limited value. I'm just assuming you have an ITX system if there's a riser cable plug directly in. Otherwise there really just isn't anything you can do.