Time Fast on SMP

I recently upgraded from an AMD 3500+ to an AMD X2 4400(dual core thus 
SMP). After a couple of hours of use I noticed that the system clock was 
going fast, I did some googling and found some boot options to add to my 
kernel in order to make it go away(currently notsc no_timer_check=0). 
While both of those help it seems that my system time does get faster 
and faster when I do CPU intensive stuff such as compiling and gaming. 
This problem appears on both 2.6.14 and 2.6.15. Ive looked all over for 
patches and other fixes but ive found nothing that will fix this, Im not 
sure if this is a kernel bug or not so I posted here to see if anyone 
could help me before I report it. Could someone please help me?

Thanks,

Lee Trager