CPU-Z or bios?

Ihaveworms

Ihaveworms

Ukfay Ancerkay
Joined
Jul 25, 2006
Messages
4,757
Q6600 G0

So I have been experimenting with overclocking. Right now vcore is on auto and I adjusted the FSB so my CPU is clocked at 2900mhz. Idle on CPUZ with speed stepping (becuase my evga mobo like everyone has said on the forums refuses to turn it off) @ 1600mhz sits at 1.16v. Under prime load, CPU-Z says it is at 1.224v.

So I bumped up the FSB to so my CPU was at 3ghz (still vcore on auto). I could tell my mobo really bumped up the voltage becuase my temps made a big increase and my voltage under load in cpu-z was reading 1.4v. So after reading this thread here, I saw that he ran completely stable at 3ghz @ 1.2625v. So I thought that I should atleast run idle when I set my vcore to 1.32v. I was lucky to make it into my desktop and it would lock up when I would start to run prime, but cpu-z would always show a much lower voltage that I set in my bios. So who is telling the truth, CPU-Z or bios?
 
What mobo are you running?

I'm having the same trouble on what data to trust...

I have an eVGA 680i mobo and a Q6600 G0... in CPU Z it reports 1.6GHz as well (not like the 2.4GHz as reported in my bios).

Also, what do you trust for temperatures? BIOS seems unfathomably high, CoreTemp seems reasonable for right temps...
 
vdroop plays a role in the vcore report. I believe it's: what you set in BIOS is what you're sending to the chip and CPU-Z reports what the chip is really getting.
 
veritas7 said:
What mobo are you running?

I'm having the same trouble on what data to trust...

I have an eVGA 680i mobo and a Q6600 G0... in CPU Z it reports 1.6GHz as well (not like the 2.4GHz as reported in my bios).

Also, what do you trust for temperatures? BIOS seems unfathomably high, CoreTemp seems reasonable for right temps...
Click to expand...
Yes EVGA 680i and Q6600 G0. There is a bug in their bios that it doesn't actually turn off speedstep. So there is actually no way to tell what vcore the chip is getting idle becuase it underclocks it idle and lowers the vcore accordingly.
 
Can anyone help the OP out... I'm on the same boat and I'm thinking about giving up and trying a different 680i board... >_<
 
I actually don't mind this board, I just want to know which is more correct. I think it is CPU-Z. I had to set the voltage on my mobo to i think 1.38somethin to get 3ghz stable. under load CPU-Z shows 1.32.
 
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