I recently built a computer for the living room, I took the graphics card out of my main computer and put it in the new one. Well at idle it used to run at about 47C, and in the new computer it runs at 61C. This tower has 6 fans and plenty of airflow, but when i start a game, (why I built it to game on a new LCD) the card reaches about 120c and shuts down. What can I do to fix this? I already cleaned the card and applied new thermal grease and that saved me about 3C, but still the problem. Help please.

all the fans in the world are not going to help if the ambient air temp is too high.

are the room with your main comp and your living room the same temp?

also, you can have plenty of air movement but just not the right kind. what case is the gfx card being housed in?

The case I am using is a Coolermaster Centurion. Actually the thing that has me stumped is that the room it is in now is always cooler then the room i had it before. It averages about 71f. With a thermometer the inside of the tower, with the panel closed, is about 80.3f and the cpu runs about 93f (pd 915 at the heatsink), and the GPU is at 165f at the heatsink. Could this card just be bad needing a new fan, by the way, the fan is running at 100%.

for one i have no idea what those temps mean as i am a celsius guy.

when did you replace the thermal grease. did you apply it correctly and make sure there is a firm contact between GPU and the heatspreader.