Originally Posted by MT Alex
I'm sure it's something you can figure out with a little assistance from some courteous folks. The display light on your tower is probably nothing more than the HDD light, a light that comes on when your hard drive is being accessed.
To find out your CPU temperatures, download Real Temp right from this site and install it. Hopefully that's the issue, since overheating the cpu is an easy fix.
OK So I checked the temps and it didn't (CPU) rise above 60 degrees C with a 3DMark11 test oddly enough.. although during the test it dropps down to like 14 FPS.. the GPU usage goes up to 100%!!