I have a users laptop that gets the BSOD regularly. I reinstalled vista from scratch and all the drivers. I sent It back. They told me that are still having the same problem. They informed me they had the fam replaced before. I ran a program that maxes out the cpu and ram to test. I used another program to monitor the temprerature. The temp reached above 200 degrees Farenheit. So I took the laptop apart and put new heat sink paste on the processor. I cleaned out any dust with canned air also. I put it back together and testes the tempreature again and it did not raise about 142 this time. I thought it was all set. Howver after running the cpu and ram stress test for 8 minutes the computer crashed again with a bsod.