I have AMD Athlon 64 4000+. The few weeks I've started noticing horizontal shaky lines. Well two days ago someone mentioned over heat (because I started getting BSOD's too), so I got SpeedFan. That day, my CPU Core was running at 65C. I also noticed my 3.3v line was only registering 2.7V.
So after leaving it off and handling some business I came back to it today. I unplugged the power to the motherboard and plugged it back in, now I get 3.2v on the 3.3. However, just browsing the web i get a Cpu temp of 46C and a Core 52C. If I start up WoW, or really any graphic intensive game (Rollercoaster Tycoon 3, Titan Quest etc) it gets up to 65C, the lines reappear and then I get BSODs. The GPU only ever gets up to about 39C. Motherboard temp always around 32C.
I took some compressed air and blew all the dust out, there was alot. But after leaving it off and not restarting it, I get roughly the same tempatures. I ordered new Arctic Silver compound today hoping that will at least help. Any Ideas?