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What is CPU PLL overvoltage? - Page 2

post #11 of 34
Quote:
Originally Posted by Darylrese View Post

you will need PLL voltage to get past 4.6ghz on most i5 2500k's....is it really a bad thing to have enabled??

Actually from what I have read its needed to get past 47. But no it's not terrible as the engineer said it will reduce life but it won't e noticeable. Maybe you loose 1 year off of the 25 year life of this chip. If you don't upgrade in 24 years there are bigger issues at hand. tongue.gif


Edit: my chip boots 49 without it enabled. biggrin.gif
Edited by UpgradeSolution - 5/1/12 at 1:50pm
post #12 of 34
haha this is true! Ill probably have a new CPU by next year so really doesnt bother me atall. My temps are fine so im not worried
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post #13 of 34
Thread Starter 
Well< i just ran Prime95 for 9 hours with my cureent config with PLL off, and it went fine, temps got up to 75 on one core, so thats fine.

Hopefully itll keep working this time.
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post #14 of 34
enable it and set it to .004-.020
Do NOT let it stay on auto..It'll juice your CPU to death!
 
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post #15 of 34
Quote:
Originally Posted by UpgradeSolution View Post

Actually from what I have read its needed to get past 47. But no it's not terrible as the engineer said it will reduce life but it won't e noticeable. Maybe you loose 1 year off of the 25 year life of this chip. If you don't upgrade in 24 years there are bigger issues at hand. tongue.gif
Edit: my chip boots 49 without it enabled. biggrin.gif

Depends on the chip, there was an article somewhere where they needed it enabled to get past 45x multi & people started thinking they needed it for 45x +.
Whatever multi the chip stops at with pll overvoltage disabled, when enabled it will usually go 4 or 5 multi higher. Yours is at 49x, the chip probably has ~54x max multi.
    
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post #16 of 34
Quote:
Originally Posted by FtW 420 View Post

Depends on the chip, there was an article somewhere where they needed it enabled to get past 45x multi & people started thinking they needed it for 45x +.
Whatever multi the chip stops at with pll overvoltage disabled, when enabled it will usually go 4 or 5 multi higher. Yours is at 49x, the chip probably has ~54x max multi.

As far as I know it does, I can get it to boot at 54 multi at 1.52v and that is the highest it boots biggrin.gif I could go higher but I dont want to go over the max v. biggrin.gif
post #17 of 34
Quote:
Originally Posted by Schmuckley View Post

enable it and set it to .004-.020
Do NOT let it stay on auto..It'll juice your CPU to death!

What?

PLL overvoltage and adding more PLL voltage are completely different things. The default option in most motherboards is "auto" for "PLL Overvoltage"

You can set your PLL voltage at the default of 1.8V but still have PLL overvoltage enabled. Conversely you can have your PLL voltage set to 1.9V with PLL overvoltage disabled. Those are 2 independent options.
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post #18 of 34
Quote:
Originally Posted by 996gt2 View Post

What?
PLL overvoltage and adding more PLL voltage are completely different things. The default option in most motherboards is "auto" for "PLL Overvoltage"
You can set your PLL voltage at the default of 1.8V but still have PLL overvoltage enabled. Conversely you can have your PLL voltage set to 1.9V with PLL overvoltage disabled. Those are 2 independent options.
headscratch.gif

^ Whatever..headscratch.gif..wth.gif I recommend enabling PLL overvoltage..then setting the amount manually to .004-.020

I generally set cpu pll voltage to 1.835
 
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post #19 of 34
Quote:
Originally Posted by Schmuckley View Post

headscratch.gif
^ Whatever..headscratch.gif..wth.gif I recommend enabling PLL overvoltage..then setting the amount manually to .004-.020
I generally set cpu pll voltage to 1.835

Pll voltage and pll over voltage are 2 different things. Pll over voltage will pump even more voltage than the pll voltage amount you set into the chip to make it so that the chip gets that full number and the IMC and iGPU get that number.
post #20 of 34
Thread Starter 
I think I'll just leave it off. Everything seems to be working fine, and I haven't found anything to say that disabling it can harm my chip, so I should be fine, yeah?
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