Wrong CPU Speed in Windows

[tci]

Hi,

I overclocked my E6600 to 3.2GHz but only CPU-Z and at bootup does it show as 3.2GHz.

Windows System info, Prime95, CoreTemp all show it as 3.6GHz.

Here's what ive got:

Mobo: ASUS Striker Ex (680i)
CPU: Core2Duo E6600 2.4GHz
FSB: 400MHz
Multiplier: x8
Vcore: 1.475v
Memory: 2.1v

Any ideas?

 

[unclewebb]

CPU-z version 1.38 is usually correct for the MHz but the voltage is usually wrong when adding additional CPU voltage.

Version 1.39 sometimes screws up the multiplier so the FSB speed will be read correctly but the total MHz is then wrong.

CoreTemp and Prime and Orthos are frequently wrong.

There was a great utility written for Tom's Hardware that calculates the true MHz based on 3 alternate timers.
http://www.majorgeeks.com/Toms_Hardware_Guide_Clock_d3895.html

Using ClockGen on my Asus P5B Deluxe will fool some programs but I haven't found a way to fool the additional timers built into the thg_clock program.

 

[tci]

unclewebb: I tried thg_clock and it gives me 3600mhz. Any other ideas? Is there something that I could have enabled which gives a little boost?

 

[mavalpha]

You're fine. They are all reading the FSB (400MHz), and using the CPU's DEFAULT multiplier (9x). Microsoft & Co. don't understand why anyone would ever want to run an "under-clocked" chip (reduced multiplier), so they just read the maximum value. Nothing you can do to change that besides wait for new software.

 

[tci]

Thanks for the info.

 

[unclewebb]

Can you show thg_clock with all 4 timers? Go into the menus for that option.

 

[tci]

unclewebb: here's the picture you asked for.



I also tried chaning the FSB to 350x8 and Windows shows it as 350x9. So I guess it's like mavalpha said, the OS uses the default multiplier.

 

[chrisf6969]

You're fine. They are all reading the FSB (400MHz), and using the CPU's DEFAULT multiplier (9x). Microsoft & Co. don't understand why anyone would ever want to run an "under-clocked" chip (reduced multiplier), so they just read the maximum value. Nothing you can do to change that besides wait for new software.

QFT, its aggrivating, but I had the same thing when I was running my e6600 @ 8x400 = 3.2Ghz. Everything but CPU-Z was telling me 3.6Ghz.