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vCore on P5B Premium & CPU-Z

post #1 of 4
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I believe the default vCore on a C2D E6700 is 1.325. I have begun some overclocking (right now at 3.33GHz over stock 2.66GHz) using the stock cooler (load temps still don't pass 45C) but I couldn't get any further and I believe this is due to vCore.

In the bios, i have set the voltage to 1.4v. CPU-Z reports my vCore at 1.334v. So my question: Is CPU-Z reporting it wrong and increasing further may damage my CPU? Or is the Asus P5B Premium undervolting? Or something else entirely...

Also, if anyone can tell me -> When people say to stay below 55C or 60C when overclocking, do they mean the 'CPU' temp or the 'Core1'/'Core2' temp (reported in speedfan or core temp). My CPU temp is usually about 10 deg lower than the latter so this information would be helpful.
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JadeDragon
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post #2 of 4
Quote:
Originally Posted by Nerogk View Post
I believe the default vCore on a C2D E6700 is 1.325. I have begun some overclocking (right now at 3.33GHz over stock 2.66GHz) using the stock cooler (load temps still don't pass 45C) but I couldn't get any further and I believe this is due to vCore.

In the bios, i have set the voltage to 1.4v. CPU-Z reports my vCore at 1.334v. So my question: Is CPU-Z reporting it wrong and increasing further may damage my CPU? Or is the Asus P5B Premium undervolting? Or something else entirely...
Well I think that board had bad VDroop. Which is: It is when you set your CPU voltage to something in BIOS, and then you read the voltage in CPU-Z, or something similar, and the voltage is lower. For example: You set the voltage to 1.5V and you read it as 1.4V in CPU-Z.

Quote:
Originally Posted by Nerogk View Post
Also, if anyone can tell me -> When people say to stay below 55C or 60C when overclocking, do they mean the 'CPU' temp or the 'Core1'/'Core2' temp (reported in speedfan or core temp). My CPU temp is usually about 10 deg lower than the latter so this information would be helpful.
I'm 90% sure that you go by the CPU temp.
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post #3 of 4
Thread Starter 
so with vDroop, does that mean if i want higher voltage, I have to set even higher than I want? Or is CPU-Z reporting incorrectly?

Thanks for opinion on which temp to monitor while overclocking, if anyone knows for sure, please tell
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post #4 of 4
I'm not sure that CPU-Z reports the VCore properly. On mine it's said 1.25v forever, even after changing it from stock to 1.4, etc.

Did your board come with the ASUS PC Probe? Use that to get voltage readings, imo.
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