kernel/dmesg misreporting clock speed of CPU

Jon Noack noackjr at
Fri Apr 22 11:11:58 PDT 2005

On 4/22/2005 9:07 AM, John T. Yocum wrote:
> First off, want to say thanks to all the people that make FreeBSD 
> possible. Very nice operating system. :) Ok, now for the problem.
> Been running FreeBSD 5-STABLE on my Dual Pentium Pro 200Mhz for many 
> months now. However, yesterday I upped to 5.4-RC3, and noticed something 
> changed during bootup.
> This line:
> CPU: Pentium Pro (145.59-MHz 686-class CPU)
> Note that line says 145.59-Mhz, I have 200Mhz CPUs. As well, prior to 
> upgrading to RC-3 that line would say 199.98Mhz. Not sure if that's a 
> bug or not.

Random shot:
BIOS battery died and the speed got reset to 150MHz?

Then again, the speed on the Pentium Pro machine I used to have was set 
with a jumper (had it overclocked to 233MHz!)...

Sorry if I'm way off base here,

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