bios and cpu-z give different volt. readings

[glupee]

I was just wondering if any one else has this problem and/or if you know which reading is correct.
I've set my bios core v to 1.35, but cpu-z gives me a reading of ~1.25.. i'm hoping that cpu-z is correct, but i'm guessing that's just wishfull thinking :lol:

well thanks in advance for you help.

 

[Shadow703793]

What is your system set up? IMO it is probably the BIOS that do not have the correct reading because some BIOS add a "false" reading in order to put keep the CPU from being overvolted.

 

[bh626pro]

Try using speedfan to check. CPU-Z is often wrong on voltage.

Also, maybe your board has vDroop - where the load/idle voltage is lower than what you set in bios.

bh

 

[WhateverPT]

M2n32-sli deluxe has some problems with other programs da read sensors for instance, core temp or speedfan.. this happens due to their really custom bios.. i have one and sometimes the computer restarts just for having core temp reading the cpu

 

[glupee]

Thanks for the responses guys!

After doing a little research it appears my board does have this vDroop doo-hickie

so now my next question is, does this mean i can keep raising the vCore and it's going to adjust it by ratio or does it just always default to set maximum?

 

[WhateverPT]

mine have the opost... you have a Vdrop i have a Vraise... lol and it is not the offset

 

[htoonthura]

Thanks for the responses guys!

After doing a little research it appears my board does have this vDroop doo-hickie

so now my next question is, does this mean i can keep raising the vCore and it's going to adjust it by ratio or does it just always default to set maximum?

i do not understand about vdrop. what are the negative impacts? Please explain it to me.

Thanks

 

[WhateverPT]

Vdrop has really a negative effect as long as you check and know what the real voltage is

 

[glupee]

Thanks for the responses guys!

After doing a little research it appears my board does have this vDroop doo-hickie

so now my next question is, does this mean i can keep raising the vCore and it's going to adjust it by ratio or does it just always default to set maximum?

i do not understand about vdrop. what are the negative impacts? Please explain it to me.

Thanks
from what i understand, it's when the vCore is set manually the system will lower the actual voltage.
What happens to me tho is that bios continues to display the manually set number while cpuz gives me a lower (actual as far as i can tell) voltage.
someone please correct me if i'm misunderstanding this.

 

[Pagani]

BIOS Vcore is correct

 

[waleedhk]

Vdroop means the Vcore at idle fluctuate at load. this means it goes up and down while speedstep is not enabled

 

[glupee]

so how do u check the correct vcore?

 

[waleedhk]

Vdroop means the Vcore at idle fluctuate at load. this means it goes up and down while speedstep is not enabled.....(i am not sure but it is something like this)

 

[waleedhk]

you can check it through a program called SPEEDFAN

 

[WhateverPT]

for that motherboard i would recommend pc probeII i know it sucks but for vcore measuring purposes it should do very well, because it reads directly the motherboard sensor with no doubt

 

[glupee]

probe II gives me the same readings as cpu-z ... so if all else is true i was right in my assumption! (cpuz being right)
I do use speedfan, but i've never actually seen the vCore there i'll check tonight when i get home from work and post...
again, thanx a lot every1!

:trophy: for the help.

 

[htoonthura]

Vdroop means the Vcore at idle fluctuate at load. this means it goes up and down while speedstep is not enabled.....(i am not sure but it is something like this)

So can you tell me the negative effects on vdroop.

 

[waleedhk]

i think it uses much power and computer remains unstable.....i just searched and found this :
Vdroop explained