[snypher]

It had a Turbo button and we made sure it was always on. As to what it did, none of us really knew. But it was on, and there was a problem if it was off. So even if it wasn't connected to anything inside the beige tower it still made things better.

[teddyh]

If the turbo button is off, the PC is clocked to run slower. Video:

https://www.youtube.com/watch?v=p2q02Bxtqds

[Stratoscope]

Maybe it worked like the Magic Switch:

http://catb.org/jargon/html/magic-story.html