A few days ago there was this massive electric storm. A voltage peak came in and screwed up my router, and through it, the cable modem and the ethernet port on my computer.
I just happened to have a spare router (Linksys, it sucks but it'll do) and the ISP sent me a new cable modem today. So I bought a PCI Ethernet card and it all seems to work now.
While I was at it, I did some general cleanup and replaced the ANCIENT thermal paste on the processor. 8 years of continuous usage should be enough to warrant such cleanup.
Wait, did you just say 8 years?
But than again, power lines here are just too damn good. I was surfing the net during a hell storm of thunder and lightning, not a single problem.
@Striker: I have no idea, how do I find out the temperatures? And yes I did say 8 years, but come to think of it, this year it's only 7 since I bought it. My bad.
For finding GPU temperatures you can use GPU-Z or your graphics driver utility if it has a temperature display.
A more universal tool that also used for tuning and displays not only fan speed but also temperatures is SpeedFan.
If you didn't know about the temperatures before, how can you know if it was overheating?