Voltage (Opteron 165) Cpu-z quite far off of bios.

[norse]

In my ultra-d I set the CPU voltage to 123% x 1.3v = 1.599v. However, CPU-Z reads out @ 1.536 which is quite a bit off. Which should I trust? I want to keep my cpu at or below 1.6v which I've heard is safe for water, but that is what I've set in the bios. If cpu-z is correct though, I guess I'd push it in the bios until it reaches 1.6ish in cpuz.

Ideas, Advice?

Thanks!

Matt

[Zenphic]

It's possible that window based software report wrongly voltages sometimes, I've seen it before. However, try and open cpuz.ini with notepad and changing the number next to VCore= to a number from 0 to 3. Change it, then run CPU-Z to see if the voltage is right. If it isn't, then change the number again until it works out. Might be a long shot :)

[norse]

So you're that CPU-Z is probably wrong?

[Zenphic]

So you're that CPU-Z is probably wrong?
Well I haven't had much experience with CPU-Z so I can't confirm it is wrong or not, but at first glance the bios seems to be a more accurate source :yepp:

[billdavis]

ive never known cpu-z to be right on vcore
________
SL-CLASS (http://www.mercedes-wiki.com/wiki/Mercedes-Benz_SL-Class)

[sephiroth8748]

I have an ultra-d and it also shows vcore lower than what I set in bios. I would trust bios more than any software though. Or you could measure your voltage with a dmm to know for sure.

[Got Chow]

It's possible that window based software report wrongly voltages sometimes, I've seen it before. However, try and open cpuz.ini with notepad and changing the number next to VCore= to a number from 0 to 3. Change it, then run CPU-Z to see if the voltage is right. If it isn't, then change the number again until it works out. Might be a long shot :)

Thanks for that, pretty cool little "trick."

FWIW, I have an Ultra D and with my vCore set to 1.475 in BIOS, in CPU-Z, it reads about 1.425 or so at full load. If I remember correctly, the voltage reads a little higher if I'm at idle... :confused:

[KingPing]

I have mine set @ 1.458 in bios......cpu-z reads 1.42......with my DMM I get 1.491:eek:

[Seufari]

I have experience with both CPU-Z and DFI Ultra-Ds...

For me, the CPU-Z was always off by a certain ratio. No matter what vcore I was using, it would always read X% lower in CPU-Z. It was ALWAYS the same so I didnt worry about it much...