I am having problems when playing games. After i have been playing for about 5 mins it just freezes and i can't do anything with the PC. The temps seem ok. Does anyone have any idea's of what may be causing this to happen or how to resolve it? I used to play games just fine until a few weeks ago. The only thing that i have changed is that i added 2 more sticks of dual ch ram. I have removed these since to rule it out and it still freezes.