Hello everyone. I am looking for some advice regarding my current predicament. The PC I built around a year ago was initially running fine; no complications. As of late, my games have been periodically locking up to a solid colored screen (depending on the environment I find myself in, the color varies, though, always to a solid color) which can only be corrected by a complete reboot of the system; merely pressing the restart button goes to a familiar black screen, then immediately back to whatever color the computer had locked up to in the first place.
I had initially encountered the problem whilst playing Borderlands, which, at the time, I had attributed to the game. Since then, it has happened in Team Fortress 2, and Left 4 Dead.
At this point obviously curious/worried, I began doing research on the subject, though I have found very little. The only consistency I have found is, whilst running FurMark, the same problem arises when the cards temperature reaches exactly 78c, so my original theories of only during game play were vanquished (or when stress is placed on the card and, consequentially, the temperature goes up). I believe I have narrowed it down to the video card, though, obviously, I am not adverse to any other suggestions. Is there a BIOS setting telling the card to shut down at a certain temp to prevent damage? I assume 78c is a relatively shallow temperature for these cards to be locking up at; is a faulty card likely? The computer turns on immediately after I've forced a reboot, leading me to believe the card didn't necessarily have to cool down. I've also tried uninstalling/reinstalling drivers, and different versions of drivers, to no avail.
Even if I could somehow manage to keep the card under 78c whilst playing games (through adjusting the fan speed perhaps) I would still like to know if this is a well known/common issue, or merely have the card RMA'd (if it were to be faulty) for fear of it becoming more severe later.
Here are my hardware specs (copying the links from Newegg):
Well if it is thermal related clean the cooler and repaste the gpu ihs. Make sure that all the components like mosfets and v-ram is coming in contact with the cooler via the thermal pads that there should be no gaps. Clean the fan with a brush while you are at it. If nothing improves RMA if possible.
Well, it is not common for a GPU to lock up at 78c but my advice would be to use rivatuner or ntune just to keep you fan speed at 65% or higher. This way it should stay in the 65c or lower arena and you should be fine.
Before you do anything I would remove the card form the PC and check for dust or anything that may have made it's way into housing/fan area...
That makes it even worse, when 2 or more cards are installed their is much more heat to dissapate. Do you have any screenshots proving that your GTX 260's run at 46c load? I have a single GTX 260 and even with my room temp at 23c my GPU hovers around 58-60c on load with fan on AUTO, 50c with fan at 65%. Unless your cards are watercooled I doubt they all run that cool....