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what would make a cpu VID change

post #1 of 11
Thread Starter 
mine changes from 1.2125 to 1.165 for no apparent reason, which crashes the system. i've tried 2 different motherboards with the same result. now i'm down to it either being the cpu or the psu. i have a new psu coming tomorrow. my current psu tests 11.96 to 12.09V, 4.91-5.02 and 3.26-3.28 with a multimeter. but the 12 volt looks like a large gap to me, but i'm wondering if it craps out for some reason. but i don't know why that would change the VID.

any ideas?
 
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post #2 of 11
Could it be a power saving option? Try turning that off in the BIOS.
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post #3 of 11
This is what they look like in my bios, yours should be simular.

Advanced BIOS Features
CPU Enhanced Halt (C1E) Disable
CPU Thermal Monitor 2(TM2) Disable
CPU EIST Function (Note) Disable

Also, Speedstep(Disable)
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post #4 of 11
Thread Starter 
mine are all off
 
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post #5 of 11
set voltage to manual and set it to what you desire...

with everything disabled the voltage is still dropping while freq stay locked..

your VID doesnt change, its the max voltage needed for your chip to run at its stock freq.
The actual voltage will lower with the freq when speedstep/eist are enabled. Im assuming since they are disabled, your voltage is still set to auto and lowering as it should to conserve power and heat, yet with the freq staying at 3000mhz, its not sufficiant to run...

remember, cpu's are pre programed, we re program them for OC'n
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post #6 of 11
You are most likely thermal throttling, that WILL change the VID because a CPU in a throttling state has a different VID, a much lower one that it will drop to along with speed in attempt to cool it self off. Even if you disable thermal monitor in bios a majority of the time it still seems to kick in if you let the temps reach the threshold, at least for mine it does.
     
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post #7 of 11
vid it self can't be change
some people lucky cause they may have low vid would help them oc a high bit with normal / low temp

you mean vcore
it almost changes due to any cpu saving future
c1e
eist
speed step
enhanced halt state
check your multiplier while the vcore get down
let yuor pc with no load for 5 seconds watch the multiplier
try also clear cmos
also set all voltage to normal
caution: some times cpuz cant read vcore because of hardware limitions or drivers
so it shows you core vid
core temp always show you vid
vid the vcore needed to run the cpu at spefictions with stock clock speed
and default multiplier
i hope you prob's solved anyway
sorry for my bad english lol
good luck
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post #8 of 11
Quote:
Originally Posted by a7m1 View Post
vid it self can't be change
some people lucky cause they may have low vid would help them oc a high bit with normal / low temp

you mean vcore
it almost changes due to any cpu saving future
c1e
eist
speed step
enhanced halt state
check your multiplier while the vcore get down
let yuor pc with no load for 5 seconds watch the multiplier
try also clear cmos
also set all voltage to normal
caution: some times cpuz cant read vcore because of hardware limitions or drivers
so it shows you core vid
core temp always show you vid
vid the vcore needed to run the cpu at spefictions with stock clock speed
and default multiplier
i hope you prob's solved anyway
sorry for my bad english lol
good luck

Push a CPU to the point it throttles and tell me VID doesn't change.
     
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post #9 of 11
This works as well for changing your VID
http://www.xtremesystems.org/forums/...postcount=1443
LL
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post #10 of 11
Quote:
Originally Posted by GigaByte View Post
Push a CPU to the point it throttles and tell me VID doesn't change.
I was under the impression VID was hard locked by the manufacturer and was merely the base voltage it comes at. Throttling shouldn't change that it would change the Vcore only. That's just the way I see it but I'm no expert in this.
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