CPU-Z readings wrong?

[gosujohn]

Hi guys,

I've recently taken readings from CPU-Z and I noticed my core speed is lesser than my processor speed.

Sorry if I used the wrong terms but what I mean is that from the image below, my processor is a Q6600 @ 2.40GHZ but the core speed is only at 1603.6

http://img27.imageshack.us/i/82166052.jpg/

Is it normal to have the difference between 2.40GHZ and 1603.6?

Thanks in advance.

 

[johnerz]

What you need to do is run prime 95 with cpuz running, then the cpu will up its clock to stock......

~Yes its running slower because you have speedstep set in the bios.
It means that when the cpu is idle, you use less power be underclocking

 

[blaineoliver]

This is speedstep, as the above person mentions, saves power.

 

[RJC]

Done a thread a while ago - may help:

http://forums.overclockers.co.uk/showthread.php?t=17972811

 

[McstylisT]

As mentioned its the speedstep. If you check the rated FSB in CPU-Z it shows 267 ,which is exactly what the Q6600 should be to top out at 2.4ghz under load. The multiplier has moved down to 6x , so you can see what its doing.

McT

 

[gosujohn]

Thank you fellas, that's been a great help. Can rest easy now knowing everything's working as intended