Is my CPU Vcore correct

[knightdog]

Hi

I wonder how accurate the CPUID hardware monitor reported cpu Vcore is. I have a gigabyte ma790gpt ud3h MB and a phenom ii x3 720 BE CPU. In the BIOS, if I set the system voltage control to 'Auto', while running Prime95 test, the CPUID HM reports my Vcore as 1.38V. If I set the system memory control to 'Manual' and set the CPU voltage to 'Normal', while running Prime95 test, the CPUID HM reports my Vcore as 1.31V. Neither of them are the 'Normal' Vcore of my cpu (1.325V). I wonder if this is in the normal range of CPU Vcore variation, or measurement error, or does that mean there is something wrong with my PSU voltage output or my MB voltage regulator? Thanks.

 

[jimmysmitty]

CPU Vcore does have variaton. Its normally very small but yours looks fine.

Here is a link to show, its from Intel but applies to all CPUs:

http://www.thetechrepository.com/showthread.php?t=126

Its also called VDroop.

Just as a example, my Q6600 is set to 1.265v in the BIOS but runs on 1.248v and is stable as all get out.