Dual Monitor setup starting only with one active screen, low res, red anomalies

[schray]

Hi!

I'm using the following setup for a year now:
Intel i7-4771
Asus H87Pro
Asus GTX650E
Win10x64 (before that win7x64)
Dell U2412M on DVI port
Philips HDTV on HDMI port

My problem began today, I changed nothing, a few weeks before I took out some fans, and installed a new Lepa bol.quet, nothing has changed apart that.

When I start the machine, the Dell display stays dark (stand-by mode) and on the TV I see the post screen, and the win later, but everything is in very low - like 800x600 or lower - resolution, and on the image there is a strong red anomaly, it's like white noise, or when the old TVs had bad reception/interference, but it's red.

If I pull out the HDMI cable, then the PC boots up correctly with the Dell monitor, also I can later plug the HDMI again, and then TV is working properly again. But as I restart the PC, the error occurs again, so I have to pull out the HDMI again...

GPU is at 35celcius right now as I'm writing, and it was capable to perfectly run a Passmark benchmark, top temperature was 58celcius. (scores were around 2000)

nvidia driver whql359, though I do not think, that it's a driver problem, since it affects POST also.

These are the last days of my GPU? Maybe my TV/HDMI cable has problems? Can it affect other parts in my PC?

Please help! Thanks!

 

[RobCrezz]

Try reseating the graphics card in the slot and unplug and replug in the pci-e power connector to the card. May have been disturbed when you fitted the new fan.

 

[schray]

Try reseating the graphics card in the slot and unplug and replug in the pci-e power connector to the card. May have been disturbed when you fitted the new fan.

Thanks!
It somewhat solved it, but an intresting thing happened:
I took out the card, then installed it again, but I didn't put the screw in. I started the PC, it booted nicely. I restarted again, and tried yet two times, all went great. Okay, It's time to put the screw back... guess what, the error came back. I took the screw out again, and it was ok once again. Then I tried to install the screw without tightening the card in a perfect horizontal position. It took 3-4 runs to nail the perfect position, now it's working.

But it's fearsome: are my cards pcie connectors screwed? Or is it my motherboard? Or there is some short ciruit between the case and the frame of the card, and it's flowing through the screw, where the paint came off?

 

[RobCrezz]

Try bending the metal bracket back a bit (the bit you screw in). It sounds like when you screw it in its tilting the card to the back pulling the front part out of the slot a bit?

 

[schray]

Try bending the metal bracket back a bit (the bit you screw in). It sounds like when you screw it in its tilting the card to the back pulling the front part out of the slot a bit?

Okay, thank you very much for your help! I'll do that if the problem comes back, and I'll try an another PCIe port, so maybe I can rule out the motherboard as source of the problem.