Lets think about that. Neither me or you are experts when it comes to K6-2 300MHz's running temperatures. Chances are that you bought it from an OEM such as HP or Compaq. OEMs tend to be as cheap as possible, while using the cheapest parts including heatsinks and fans, and they leave out anything unneccisary. Therefore, if it came with a f/h, I would leave it alone. If it really bother you, you can always buy sound proof foam and line your case with it...
- "That's no moon, it's Rambus!"