I have the 370 which comes with the Pabst fan, I also have a YS Tech 7200RPM that moves 40CFM. Would I be better off with the YS Tech fan on the Heatsink and moving the pabst fan as the rear case fan? Or should I stay as is, with the YS Tech as the rear case fan. I am using a MIcrostar 6380 board a AMD 1800XP and am getting 42C with a 80mm Sunon Front case Fan, 80mm Top Case Fan (above powersupply) and the YS tech as the rear case fan and of course using AS II.