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quick overclock question

post #1 of 17
Thread Starter 
This is my first overclock, on default bios settings my vcore is .992v at idle and 1.272v at 100 percent load with prime 95.
When i overclock to 4.4ghz I set it to 1.280v and its stable so far.

At default settings my vcore drops at idle and increases with load, my overclock stays at 1.280 at idle and load.

Is there a setting in bios to have the vcore fluctuate voltage between idle and load after its overclocked that i am missing
or do you guys just leave the vcore set at the same voltage during idle and load?

Do i even want it to fluctuate voltage?

my computer is my sig rig.


Thanks in advance
 
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post #2 of 17
Personally I never allow voltage to drop at idle. Most overclockers will tell you the same. I don't really have a reason for this other than it has been common practice since I started OC years ago. The one benefit is that it allows you to always monitor Vcore and make sure it never exceeds certain boundaries.

You may however, still experience Vdroop or Vrise even if it is locked to a certain voltage. LLC (Load Line Calibration) can counteract this on more modern motherboards.

Turn off C1E halt state and EIST in power saving settings in your motherboard BIOS and this will stop the voltage dropping at idle.
 
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by GerroffMe View Post

Personally I never allow voltage to drop at idle. Most overclockers will tell you the same.


This answers my question,

Thanks for the help.
 
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post #4 of 17
Thread Starter 
I did some more research and offset voltage was what i was looking for. I had It set to manual so I went ahead and switched it to offset.

More Better, thanks again
 
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post #5 of 17
Ah yeah, you always want it on offset.
 
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post #6 of 17
you lost me geroff.
first you say you never allow it to drop. then you post saying you always want to use offset. those 2 comments totally contradict each other.
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post #7 of 17
I mean use offset voltage to set Vcore, and turn off EIST and C1E in order to disallow voltage change.

i.e. stock voltage is say 1.0volts, if you set offset voltage to +0.1v then you will end up with a Vcore of 1.1v.

Vdroop and Vrise may still occur under load due to LLC or lack thereof.

However, if EIST and C1E and all other power saving states are off then you will not get Vdrop, only Vdroop and Vrise.
 
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post #8 of 17
offset voltage is used to give the cpu more/less voltage under load. thats the point in the offset.
that means less vcore at idle so you dont always run load voltage through your processor.
in my case, i idle at 1.08v @1600mhz and load 1.32v@4500mhz.
manual vcore i need 1.360v to be stable. there is no way i want that voltage and heat running 24/7 when it isnt needed.

i honestly dont see why you dont just set your vcore manually. the way you explain it, thats what youre doing in a most complex round-about way.


OP, do you want your vcore to drop at idle and then jump back up when under load ? im assuming this is what you actually wanted.
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post #9 of 17
Quote:
Originally Posted by pc-illiterate View Post

offset voltage is used to give the cpu more/less voltage under load. thats the point in the offset.
that means less vcore at idle so you dont always run load voltage through your processor.
in my case, i idle at 1.08v @1600mhz and load 1.32v@4500mhz.
manual vcore i need 1.360v to be stable. there is no way i want that voltage and heat running 24/7 when it isnt needed.
i honestly dont see why you dont just set your vcore manually. the way you explain it, thats what youre doing in a most complex round-about way.
OP, do you want your vcore to drop at idle and then jump back up when under load ? im assuming this is what you actually wanted.

I think we are on the same page, we are just getting muddled here.

On my GB mobo I am using at the minute I can't set the voltage for Vcore in any way other than Offset voltage. Thsi is why I do it. I see what you are saying though. And I run the same voltage all the time so that the process multi is locked and it can't go into any power saving modes. When it is idle it runs cooler than when it runs under load, so there is no impact on temperature using these settings, it just stops the processor from reducing its frequency or from shutting down cores.
 
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post #10 of 17
Quote:
Originally Posted by pc-illiterate View Post

offset voltage is used to give the cpu more/less voltage under load. thats the point in the offset.
that means less vcore at idle so you dont always run load voltage through your processor.
in my case, i idle at 1.08v @1600mhz and load 1.32v@4500mhz.
manual vcore i need 1.360v to be stable. there is no way i want that voltage and heat running 24/7 when it isnt needed.
i honestly dont see why you dont just set your vcore manually. the way you explain it, thats what youre doing in a most complex round-about way.
OP, do you want your vcore to drop at idle and then jump back up when under load ? im assuming this is what you actually wanted.

I've been using offset myself, 0.884v while idle and 1.302v under load @4.6ghz, LLC on high.
Haven't had a single BSOD in two weeks, prime stable, IBT maximum etc.
I don't see a reason NOT to use offset if you can get it stable and on the same vcore under load that you would set it manually.
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