CPU showing lower clocks

[timmybazza]

Hi,

I have a C2D E6400. It's rated at 2.13 ghz, but when i go into Control Panel and look at system it shows me that the cpu is actually running at 1.6ghz. I tried overclocking but i only got to 2.16 ghz at the most. Can someone please explain why my cpu is clocked so low, and also why it has such difficulty overclocking.

Thanks

 

[WR2]

Why is my CPU not showing correct speeds? Did you check the speed while it's doing something CPU intensive like running a game?

What motherboard do you have? Or what is the make & model of your PC?

 

[timmybazza]

I've used CPU ID and i have it OC'ed to 2ghz now, and thats the most it shows. I have a gigabyte 945PL S3 mobo. Also temps are around 40 degrees celcius, so thats not an issue

 

[timmybazza]

I just figured out why. I looked at a review of the mobo, and apparently C2D's like a 1066mhz fsb, whilst 945PL systems run on a 800mhz or 533mhz FSB. Know if i can do anything about it?

 

[WR2]

Your right - it's the 800FSB of the Gigabyte 945PL S3.
Gigabyte GA-945PL-S3 945PL Express Motherboard Review
" testing the GA-945PL-S3 motherboard with a 2.4GHz Intel Core 2 Duo E6600 processor, running at 1.8GHz"

 

[WR2]

Without changing motherboards I think you've done about everything you can.

 

[timmybazza]

Thanks for your help anyway. I really think its time for me to get a new system...

 

[timmybazza]

Best answer selected by TimmyBazza.