Which temp is at 160F? I know with my laptop(a freaking leg warmer) that the motherboard will constantly run at 10-15C higher than the cpu and gpu. Currently on my HP dv6000 with Firefox and PDF viewer running, I'm at GPU 131F mobo: 149F Core1: 113F core2: 115F.
I know these seem high, especially when compared to desktops, but usually, a laptop is built with higher heat tolerances. From what I remember, the critical shutdown temp on the T5550 1.83ghz C2D is like 85C. Post up what processor he's running and we'll see if its still a safe amount of heat or not.
Who knows, maybe a fan crapped out on it.