I have recently put together a new rig and it seems to be running nicely. However, I occasionally get a heat spike to exactly 100C that is being reported by Asus PC Probe II. This has happened 3 times since the build. The system runs really quiet even after playing some heavy duty games on it. At idle the mobo temp is 30C and the CPU is 39C. CPU fan idle is about 1048 rpm and the PSU fan shows 733 rpm. Chassis fan rpm shows 0 rpm but is running. System details are E8500 Core 2 Duo 3.16 Ghz with Stock Fan Asus p5e3 Pro MB with x48 chipset 4 Gb Gskill DDR3 1600 Ram Antec 430w PSU Nvidia 9800 GT 1024 mb memory One other thing..first time I powered up the system i got a spark that I wasnt sure where it came from but the system still came up with no problems. I shut down and moved the plugs that were not being used further away from the PSU because I suspected one of them arced juice back to the PSU. Turned the system back on and had no problem with that again. All plugs are tied down with wire ties.