just installed it in my new rig, this thing is great. used some AS5 and my 3700+ san diego @ 2.8 is idleing at 27c. ran prime95 torture test and superpi 32m at the same time and got zero errors and the highest it got was 38c and it appears to be 100% stable, havent even tried to go higher yet. its in a thermaltake tsunami case and on an ASUS A8N SLI Premium.