Bios Vcore doesnt agree with CPU-Z and HW Monitor

[timaishu]

I recently decided to try and get more power out of my E6600. I've had it running at 3.0ghz for two years now, and I am wanted to push it harder. My motherboard is an Asus P5N32E-SLI Plus and I have 8gb of generic cruical ram. I can get the specs if necessary.

Anyways, to achieve my 3.0ghz overclock, I had to push the Vcore to 1.45v!!! This seemed insanely high to me.

The rest of the specs are:

FSB: 1333
Memory Voltage: Auto
1.2V HT Voltage 1.4
NB Core: 1.4
SB Core: 1.5
CPU VTT: 1.55

Today decided to push it up. To get to 3.3ghz, I had to set my Vcore set in the bios to 1.51 something volts. This seems stupidly high for what I am trying to achieve. Anything less and it either bsods/no boot/fails orthos quickly. I downloaded CPU-Z and HW Monitor and to my surprise, they both read around 1.392 volts.

Is it possible that my bio's settings arent accurate? How accurate are CPU-Z and HWM? I am wondering if my overclocking issues are related to me not giving them enough voltage(obvious, but if these two programs are accurate, I've been giving it less than I thought).

I am at 25 minutes of orthos, 3.3ghz at 1.51v(bios setting) and I am fluctuating around 48-50C on the processor. I have a 120mm cpu cooler.

 

[timaishu]

Orthos failed at 39 minutes. Not bad considering 10 minutes go it couldnt last for more than ten seconds.

I donwloaded speed fan and it reads 1.41 volts.

What does this mean? Is my bios really 1v off?

EDIT: I forgot that within my bios, that I have a voltage monitor. The voltage monitor measured the core at 1.47 volts. This seems like the most reasonable number thus far.

What are yalls thoughts? I know its a bunch of random stuff Im throwing out their, but I am generally confused now as to which number to trust.

 

[Mt Power]

I did a little digging (as im not familiar with you cpu) and the general consensus seemed to be 1.55 volts as a high.

if the stress test is failing, your overclock is not stable.

I would trust the bios!

 

[timaishu]

Thanks for the reply brah.

That wasn't really my question though. Im curious as to why all these different monitors dont reflect the settings in my bios. Anyways, I may have got it stable now.

I have it at 3.3ghz and orthos is still going at 2.5 hours. In my bio's I set my vcore to 1.54-1.55. In my bios, its hardware monitor is reading 1.49-1.5 volts. CPU-Z and Hardware Monitor read it as 1.408 volts.

Im thinking that the bios' voltage monitor is the most correct because that voltage seems to be around what I would need for 3.3ghz.

 

[Mt Power]

http://www.tomshardware.com/forum/220361-29-e6600-temp-core-temp