On Wed, 23 Jan 2008, Daniel Horecki wrote:
> And one more thing, from that dmesg:
>
> cpu0: Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz, 2194.67 MHz
> cpu0: Enhanced SpeedStep frequencies available (MHz): 2400 2200 2000
> 1800 1600 1400 1200
>
> How it can set 2400MHz, if it's 2.20GHz? Linux can use 2200 MHz to 800 MHz.

As Joerg mentioned, this is a feature of newer Intel chips. There is an 
open problem report on this issue:

   http://www.netbsd.org/cgi-bin/query-pr-single.pl?number=36995

Feel free to append any additional information you may have.

Cheers,
Jared