About a month ago I got a pretty bad virus. I had to restore my computer back to its factory status to get rid of it. But ever since then my PC shuts down whenever I play video games sometimes I can't play a game for more than 5 minutes without it shutting down.

I opened up my PC to see if anything was wrong and I felt my video card and it was pretty damn hot. Not burning hot or anything like that but it was still unusually warm. I updated my video card's drivers hoping it would solve the problem but still it ended up shutting down every once in a while. (Video card is an ATI RADEON HD 4850)

I still think the video card is the source of the problem because my PC only shuts down when I play games. I'm guessing the video card gets too stressed out by the game and shuts itself off to avoid overheating. So I wanted to know what can I do to cool my video card off and avoid  it overheating and shutting down. 
 
I downloaded HWMonitor and it says my video card is reaching temps of 185 degrees Fahrenheit  (or 85 C)
I'm no expert but that seems ridiculously hot, like melt your PC hot, but I doesn't feel THAT hot to me.
 
 
Edit: I've had this PC for two years and I remember buying the power supply specifically for the video card that I bought. Out of the entire two years it just started doing this over the past month after I restored my PC from that virus.