Originally Posted by LexDiamonds
I'm from the age where raising voltages on a vid card required soldering skills and a VR. The whole software vmod revolution has people spoiled. This being said, I believe there is still a driver/BIOS lock on Kepler voltages at the moment but this should be sorted out in the coming months.
I tend to agree. No offense Youra but the # of phases and pin connectors don't have anything to do with the 'overvolting' capability of a card. There's only three things that matter directly in a software-controlled situation like this one:
1) You have a voltage controller that has the ability to 'take commands' from the voltage control software you're using (like AB or the like) and
2) The software knows how to successfully 'talk to' that voltage controller and tell it what to set the voltage at, and
3) The bios or driver doesn't somehow inhibit that 'conversation' from happening.
Beyond that, the de-facto limit to the maximum voltage that can be achieved could be dictated by any of three components involved (controller, software, bios/driver).
Since it's IMHO unlikely there's a software limit (be that driver software or overvolting software) in place here, the only things that could be limiting voltage on Kepler cards are limits either set by the bios of the card, or the controller itself is simply not capable of delivering a voltage that's any higher than what we're seeing the cards hitting. I don't think we really have enough info at this point to know for sure which one of those two is applicable, but it *may* be a bios lock on the voltage, that's for sure.
What the additional power phases do is clean up the delivered power more thoroughly (reducing ripple and scale of voltage fluctuations) so they may improve stability at higher clocks but really don't allow for more voltage per se. And all the extra pins do is keep your PCI-Ex power cables from getting as warm.Edited by brettjv - 5/12/12 at 11:53pm