I know somebody who used a rheostat dial mounted on the front of his tower to manually control fan speed. He cranked it up when it was running 3D games to stop the board melting itself, and turned it down when he wasn't, since the fans inside sounded like a chainsaw.
Personally, I really don't know how people can put up with this badly designed, heat-blasting crap modern corporations call computer chips. I have an idea - let's go back to the diode. It made as much heat and noise as computers do nowadays. Only problem is you'd need a six storey house to get the same computing power as a Spectrum. ;-)
