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Why is my vCore different than before?

post #1 of 11
Thread Starter 
Hey guys, I just noticed my vCore is reading 1.31 idle from CPUz and Smart Guardian. It drops to 1.296 during Orthos test, but the vCore used to be at 1.264v idle yesterday and forever before that.

I checked BIOS and the vCore increase is still the same increment I always had it on, and BIOS reads it at 1.31 also.

Voltage setting is NOT ON AUTO; every setting is the same as it was when I was reading 1.264v. What's going on??
Edited by xz3rorom3o - 6/3/08 at 12:44pm
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post #2 of 11
Err.. Something has caused a resistor's resistance to drop. Whatever that can be.. I don't know. Maybe moisture? That's my only guess.
post #3 of 11
cheap board quality

lol

i think betri is spot on, unless you have your vcore set to auto?
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post #4 of 11
Nothing to worry about....v-core usually drops during stress tests...at least this has been the case for me, even on top quality boards!
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post #5 of 11
It is normal for the cpu voltage to drop during load. It is called the 'vdroop' phenomenon and it is actually a safety mechanism that protects your chip from over-voltage fluctuations.

Unfortunately this safety mechanism has unwelcome side effect of making the cpu more unstable during high stress times, such as when you run ORTHOS.

Sometimes you need to increase the core voltage of the cpu in order to compensate for this vdroop in order to make the cpu more stable, but of course this increases the vcore voltage and increases heat creation in the cpu.
post #6 of 11
Thread Starter 
Oh the 1.31 isn't because of stress test or anything. I understand that the voltage drops a tad bit under stress, but I am saying that suddenly the voltage went UP to 1.31v under idle when it was always 1.264 idle in the past. Stressing at 1.31v drops the voltage to 1.29...

how can my voltage just go from 1.264 to 1.31 out of no where? All my settings are still the same

could it be an issue with the mobo...cpu?
Edited by xz3rorom3o - 6/3/08 at 7:55am
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post #7 of 11
Thread Starter 
bump
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post #8 of 11
Vdroop... and do you have your volts on auto?

If so, that's what your mobo does to make sure it's stable (only when it's on auto)

It fluctuates when needed.
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post #9 of 11
Thread Starter 
No no... vCore is set at the SAME SETTING it was at before I noticed anything. It is NOT on Auto. I highly disagree that it is the vdroop because before I was running 1.264 24/7 idle and now it is 1.31 idle.

I have seen the 1.264 fluctuate downwards when stressing, but I have never seen 1.31v. CPUz, Smart Guardian, and BIOS all read the same
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post #10 of 11
Okay well i didn't know what was going on if it was on auto or not my bad

Well in that case I have never seen a voltage jump up like that before for idling...
I will browse around for a bit...
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