BLUE SKY THINKER,
Before looking at a way to get the cooling fan to shut off, I would look for a replacement fan that is more efficient and quieter.
If they came out with a BIOS Revision to keep the fan running all the time, you know they have a big heat problem with that Notebook.
I would recommend getting an MP3 Player vs trying to turn off the Fan. (Each time the Fan starts to annoy you, crank up the tunes on the MP3 Player.)
Take Care,
Richard