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Really strange GPU fault

PaulyD

PaulyD

PaulyD

Soldato
Joined
24 Mar 2008
Posts
4,654
Location
High Wycombe
I have a really strange fault with my graphics card.

It can play any game fine but when I close that game and go back to the desktop then after 15-45 seconds my monitor will turn off, the fans on the 780 will increase to max and I will have to reboot to get a picture back. The OS is still running at this time (stayed chatting to someone on teamspeak when it happened!) but the monitor loses the signal.

I originally thought this was my motherboard at the time, as I was running the below and it was doing the exact same thing (I had a few other issues with the motherboard thus me blaming it):

3570K
P8Z77-V LX2
8GB 1600mhz Patriot Viper
650W PSU
MSI Gamer OC 780

However I have since upgraded to the spec and have the same issue:

4790K
Asus Z97 Pro Gamer mobo
16GB Corsair Vengence 2400Mhz
650W PSU (same)
MSI Gamer OC 780 (same)

The more graphic intensive the game the more likely it will happen, never during the game, just after I close it.

What I have done to try resolve this:

* Swapped Mobo, RAM, CPU
* Multiple OS reinstalls
* Multiple Nvidia driver versions
* Stock clocks for everything (both on new and old PC)

PC logs don't highlight anything, aside from the loss of power by holding the power button. The driver itself doesn't crash (or doesn't whilst the monitor is still on).

I am baffled and can only believe its the card, especially after it being tested in essentially two different PCs with different/clean OS installs.

Any ideas as I am all out!
 
try looking at the fan speed profiles, it might think it's overheating.

maybe as lots do turn off the dynamic fan speed , and temp monitoring if your comfortable
that you have nothing over volted and running hot.

there are utilities out there that you can use to monitor control fan speed/ temps.

a lot of these progeams have standard settings for power usage / noise reduction.
if your not bothered about these things you could just turn your fans up on manual.

hope this helps
 
Sorry guys, was out pretty much the majority of yesterday and just on way back from work now.

Will certainly test with the fan whacked up, typically seeing max temps of mid 70's whilst gaming.

PSU - I agree could be possible, however I would expect the issue to occur under Los rather than when exiting the game.

OCUK have requested I RMA to them for testing, however with how strange this bug is I'm worried they will test it as OK..
 
setter said:
Least you know the problem now mate. Wonder what the replacement will be.
Click to expand...

Absolutely, glad I got to the bottom of it and on top of that OCUK were able to find the card faulty as well!

Stanners said:
It will be interesting to see what it is.
Click to expand...

IC3 said:
Most likely a 970, as 780 aren't in production anymore :)
Click to expand...

I only bought it a year ago, would have thought spares would be available. Wouldn't mind a 970 in return however :D
 
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