I overclock my Slot1 P3-700E to 1Ghz using:80Watt peltier,2nd internal power supply,12v relay,copper water block,submersible pump/PVC reservoir,radiator,and a Pabst-8500N fan. hMonitorPro keeps my CPU temp at my chosen 17C +/- 1C using only my CPU thermister. Gave up on Gorbs,other HSFs,and watercooling alone. Now I can select any temp from -10C and on up and keep it within 1 Degree C. MarkAtTheZone