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Sandy question. PLL

post #1 of 4
Thread Starter 
Anyone know if there is a difference between raising cpu pll voltage, and enabling internal cpu pll overvoltage?
    
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post #2 of 4
The latest BIOS updates for motherboards seem to add "enabling internal cpu pll overvoltage" option to the BIOS. I believe this was done to improve the overclocking of the retail "D2" revision SB chips. I've asked a somewhat similar question over at XS Forums...

http://www.xtremesystems.org/forums/...d.php?t=264972
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post #3 of 4
Thread Starter 
have found the answer, as always Sin is there for us. Raising the pll does exactly that, it raises cpu pll voltage. Internal cpu pll overvoltage actually unlocks the pll to allow higher multipliers, as pll is a major factor is your multiplier. In other words, you can go higher than a 48x multiplier with an unlocked pll, with a locked pll, 48x is as high as you can take your chip.
    
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post #4 of 4
I'm running a 49x multi with my i5 2500K on a UD3. I'm running the original F3 bios which doesn't have that option. Why am I able to go above 48x? I've tried running the F6a beta bios for that option, but it's unstable for me.
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