Yes, I am using stock cooling. And if the same is happening to me, where the actual temps are 15 degrees higher, that would suck cuz i would be over 65C when idle.
I want to OC this sucker, but if the temps are this high with stock settings, I don't think I'll go very far.
Oh, and I do play CSS, but not sure about server. I play randomly, so it might as well be someone else.