GPU not working on pcie x16

[mvlouman]

Hey guys, my gtx 770 stopped working today. The computer won't boot, black screen of death...

Here is the interesting part, if I put the gpu on the x4 pci-e slot, it works just fine but it just won't work on the x16. One would think the x16 slot might be fried but... tested my 1080 on it, and it works! Also, tested the 770 on my other pc works just fine on any pci-e slot.

I have no idea what could be the issue. Internal graphics are disabled, the only weird thing though is whenever I try to set the initial display to PEG it won't save it. I save and restart but it goes back to AUTO. Not sure if that could mean anything.

Anyways, maybe someone has an idea?

specs:

I5 3570
Motherboard gigabyte Ga-b75m-d3h
16gb corsair dominator
Power supply corsair tx 650
Evga gtx 770 2gb

 

[terry4536]

It may be as simple as a dirty connector on the graphics card or the slot Try cleaning the contacts and blowing the dust out of the slot. Make sure that it is firmly seated.

The power cable is an additional possibility

 

[mvlouman]

It may be as simple as a dirty connector on the graphics card or the slot Try cleaning the contacts and blowing the dust out of the slot. Make sure that it is firmly seated.

The power cable is an additional possibility

Already did that =/

Used compressed air to blow out any dust in the slot and an eraser to clean the gpu contacts.

 

[terry4536]

I assume that you have tried to reinstall the card since verifying that the slot works with the GTX 1080. I don't know of any reason that would cause this.

Did yo try the GTX 770 in the GTX 1080 system?

 

[mvlouman]

I assume that you have tried to reinstall the card since verifying that the slot works with the GTX 1080. I don't know of any reason that would cause this.

Did yo try the GTX 770 in the GTX 1080 system?

Yup, it works just fine.

I could easily say it's a mobo issue since it's a cheap gigabyte one and they all usually go bad after a few years but the fact that the 1080 works on it really bothers me.