Ok heres the problem. Maybe someone can shed some light on this for me. I built a computer roughly 3 years ago and have just been upgrading since then. Im running an AMD 1500 as my processor. The problem that I am having is my Heatsink seems to be running louder than normal. I checked and I was shocked to see my fan whirling at 7000+ RPM. Its a thermaltake heatsink. I have tried everything but completly replacing the heatsink. So far Ive removed the fan from the heatsink and cleared out all the dust, as well as switched the fan around to see if that helped (which it didnt, only minor temp differences). The weirdest thing is my MB runs at about 34C and the CPU itself never goes above 60C, normally running about 50C under normal load. But that darn heatsink fan wont slow down at all. Any ideas, or suggestions to try out before I go out of my mind? The only thing I was wondering is is it possible for the current going to the heatsink to be wrong causing the high RPM? I dont know if that makes any sense at all, but I dont want to put in another heatsink only to see the same things happen. And ill try to answer anything else needed to help any of you out with an answer. Thanks much.

What kind of Thermaltake is it? I have the Spark 7 on my machine and it has a fan speed selector maybe you have it set to high speed that could be it.

That's very strange! If it's not what Vash suggests, the only thing I can think of is that it's a 5 volt fan connected to 12 volts. Check the label on the fan. It's usually pretty easy to replace the fan without replacing the heatsink. They are normally just help on to the heat sink with 4 screws.

Ok thanks for the help. I dont have an adjuster on the fan so I know its not that. However, I never thought about the voltage issue. That I will look into. Thanks for your help.