I have a two-month old Vostro 200 Slim which is WAY noisier than my Vostro 200 Mini.

I've worked out that it's the TOP fan which is making the whiring noise. According to SpeedFan it's running at 1740rpm (even with no load). I'm sure I've seen other owners report half this speed. Can anyone confirm?

(I'm running in a cold room, btw)

I'm running the latest bios (.15), so what are my options? Return the machine?

Any help appreciated!