Clock running fast?

[John Haxby <jch scalix com>]

I've just recently installed RHEL4 update 1 on an Althon 64 machine (a 
Compaq Presario 1440 if that makes any difference) and the clock seems 
to be running about twice as fast as it should be (xclock -analog 
-update 1 is quite entertaining).

Looking at /proc/cpuinfo it says that the CPU frequency is 994.954MHz 
but in the output of dmesg it says the CPU clock frequency is about 
2200Mhz.   This is with an x86_64 kernel.

Has anyone else seen anything like this?

jch