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CPU PLL Voltage question 2500K

post #1 of 16
Thread Starter 
My board puts the CPU PLL at 1.83V when it is on auto. I saw a recommend by a forum member to put it at 1.75V.

I saw another person on another forum who said you can put it at as low as it can go which in my case is 1.58V.

ALL of these settings are %100 stable... Auto is stable, 1.75V is stable and 1.58V is stable. So I guess my question is why does it not seem to mater where it is set, and does raising or lowering it have any effect on anything? I ran benchmarks on both auto and 1.58 and saw no change as well. Temps seem the same too.
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post #2 of 16
Thread Starter 
Anyone?
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post #3 of 16
you are fine if the CPU PLL Voltage at auto. i set mine at auto too.
Quote:
does raising or lowering it have any effect on anything?

I don't think so biggrin.gif
post #4 of 16
Supposedly, lowering the PLL voltage down to 1.7-1.75v or so will allow you to overclock further with the same vcore, or lower your vcore a little. I'm honestly not sure. I'm still stuck at a wall at 4.8GHz, 1.42v due to cooling.
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post #5 of 16
Thread Starter 
Quote:
Originally Posted by pioneerisloud;13375967 
Supposedly, lowering the PLL voltage down to 1.7-1.75v or so will allow you to overclock further with the same vcore, or lower your vcore a little. I'm honestly not sure. I'm still stuck at a wall at 4.8GHz, 1.42v due to cooling.

I was wondering about that honestly. I can't seem to get much higher than 4.6 with it on auto. I want to try getting higher with the pll lowered!
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post #6 of 16
Quote:
Originally Posted by killeraxemannic;13377586 
I was wondering about that honestly. I can't seem to get much higher than 4.6 with it on auto. I want to try getting higher with the pll lowered!

I'll have to get into BIOS and double check, but try this out....
Quote:
AI Overclock Tuner = Manual
BCLK/PEG Freq = 100
Turbo Ratio = per Core 48
Internal PLL overvoltage = Enabled
Load Line Calibration =Ultra High
VRM Frequency = Manual
VRM Fixed Freq Mode = 350
Phase Control = Extreme
Duty Control = Extreme
CPU Current Capability = 100%
CPU spread spectrum =disabled
CPU Voltage = Manual Mode-start with 1.42V,once you get it stable,you can start lowering
VCCSA = Auto
VCCIO = Auto
CPU PLL =Auto (or 1.75 - 1.70v)
all other default (EIST,C state all on) ,start with RAM @stock,once you establish your OC ,bring your ram up to speed,DDR voltage as specify
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post #7 of 16
Thread Starter 
Quote:
Originally Posted by pioneerisloud;13379211 
I'll have to get into BIOS and double check, but try this out....

I think I can pretty well relate my bios to that! I will see how it goes. Those are pretty much my settings right now any ways for 4.5
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post #8 of 16
Im messing with PLL voltage now lol, see this is old but a few months later anything new?
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post #9 of 16
mine is @ 1.76-1.78 ..everything's stable thumb.gif
 
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post #10 of 16
only thing lowering CPU PLL allows you to do is lower CPU temps, so yes it would allow for a few extra MHz, but only a few, it will allow you to stabilize the OC better at the same vcore because you are decreasing temps.
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