Bought a dell demension 3000 becasue the price was right and it came with a 17" monitor. Only problem other than no AGP or PCI Express slots is the prcessor fan, its Noisy! Noisier than any PC processor fan I've ever heard. Had dell replace fan and send new PC - Still noisy. I belive its now because I ordered a 3.0 HT 800 FSB in a low level PC with not the best cooling. The cooling system is a 120mm exhaust fan with a hood to the processor. I flashed the bios with the newest from dell - no luck. Thinking of replacing the 120mm fan and hood with a quiet heat sink/fan and a quiet 120mm case fan. Only problem is dell motherboard connecting plug is not standard its propritary dell. Would it hurt the motherboard If I spliced these wires after the plug and ran it to the heatsink/fan? I know what wires should go were but I know 1 wire monitors the fan speed. Is this fan going to work properly and not alarm the motherboard? (2500rpm) or should a guy splice it to the 120mm case fan I'm going to install? (1500rpm) Will it speed up when the processor gets hotter? Thanks