Hi everyone, after installed a flashed 7800 GTX, my Slot fan ran 2300 plus rpm when running a 3D rendering (Sounds like flight engine, but the GPU temperture is very cool, around 50 degree). But by using my old 6600 GT, the slot fans was very quiet even running a harder 3D rendering job, and degree was above 60 degree. However, Gotoh in Themacelite told me it was the Apple safty software problem, wasnt the graphic card Bios problem. Does everyone experiece that before? Please describe the experience about after install a new graphic card (like 7800 GT, Qadro Fx 4500) please.