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Max PLL on i5 750?

post #1 of 9
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My bro is running an i5 750 @ 4.0Ghz. Currently the PLL is 1.9v, is this too high?
 
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Gsvlip Dudyrm
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post #2 of 9
Ya 1.9v is the don't go over point. Doubt he needs more than 1.8v. Raising the PLL is just a likely to create instability.
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post #3 of 9
Why did he raise it in the first place? 99% of the time it's not going to help with anything. If anything, he could lower it a little bit.
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post #4 of 9
PLL should not need touch till around 4.4Ghz usually.
post #5 of 9
Quote:
Originally Posted by kylzer View Post
PLL should not need touch till around 4.4Ghz usually.
this.
i only raised pll to 1.9v for my 4.5ghz 24/7 oc
    
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post #6 of 9
PLLv is goofy..there is no rhyme of reason with 1156. Totally dependant on CPU. Some run good with 1.58v.. others good with 1.85. I had a 655k that would clock over 6ghz with 1.56v PLL!

*I would say try to lower only the PLLv by .05v until you run into stability issues.
post #7 of 9
Some people seem to get stabily by lowering PPL from the stock 1.8v.... not sure how that works, no one has really been able to give an answer yet.
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post #8 of 9
Raising mine to 1.9 gave me real good stability and allowed me to keep a low vcore, @ 1.8 I had to have vcore of about 1.34 but with PLL up all I need is 1.31825
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post #9 of 9
Quote:
Originally Posted by GameBoy View Post
Some people seem to get stabily by lowering PPL from the stock 1.8v.... not sure how that works, no one has really been able to give an answer yet.
So no one has an answer to this ?
Like to know myself...
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