Nvidia GTX 660 heating issues

Acheronn93

Honorable
Jun 12, 2013
1
0
10,510
Hey i've have a Nvidia GTX 660, at the moment in a PC i've had since christmas 2012, it has run perfectly until about a week ago where it'll play games without issue for roughly 5 minutes at a costant 60fps before dropping to between 10-20 fps. The Card Idles at around 40-50c. And now refuses to play WoW which is one one the only games i generally play on "good" settings where as it would often play it at 60fps on "Ultra" without incident. since then updated my drivers, i've moved the computer to a more ventilated area, still had problems, took the case off and cleaned the dust from the inside of the case, still having problems and have tried upping fan speeds, and still the problem persists to the point where even my internet browsers will show signs of graphics lag. Is there something I'm missing or a sure-fire way of fixing the issue, as I really can't afford a new graphics card at this time.