I put a Phenom 9850 with a Xigmatech S1283 Cooler on a Gigabyte GA-MA78GM-US2H mobo with G.Skill DDR2 1066 running at multiplier 5.33x in BIOS. I am only running two hard drives, one 80gb SATA for main, partitioned for Vista, Mac and Linux and a 250 GB SATA for storage. It is in a Thermaltake ARES case with 2 x Antec 120mm adjustable speed fans, set on high. The 120mm fan that came with the cooler, runs at a weak ~500-1000 RPM. I turned off AMD Cool N Quiet and that seemed to put the RPMS's on the CPU fan up a little but. I'm going to replace it with an Antec adjustable speed fan. Back on track, at idle speeds, according to SpeedFan, right now the CPU temp idle is 45C. I've seen it hit 52+ with load. I rechecked the seating of the cooler and it is nice and tight. I also used the thermal compound that came with the cooler and put a nice even coat on the CPU itself taking note not to get anything on the board for conductivity reasons. (I had a short once from thermal compound on a mobo). So is this a normal idle? I have an AMD X2 6000+ clocked with a Tuniq Tower and it runs idle @ 32C and 36C load. Obviously I have two more cores on the Phenom but something seems off here. Any input and suggestions?