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January 31, 2014, 05:53:44 PM |
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Those cards, afaik, cannot be undervolted.
voltage control is locked from hardware, the only way to do it is with a hardware mod (essentially what you do, is make the card believe it is working at, let's say 1.5V, when really the card is at 1.2V, by faking the voltage sensing signal that goes into the controller) of course that changes from brand to brand with different controllers so it is not an easy thing to do, and if you don't know very well what are you doing, and have the proper instruments, you can pretty much destroy the card.
if you have enough 7870 identical cards (let's say, over 5 or 6, it may worth the risk doing it) otherwise i wouldn't mind, because it will end up being more trouble than it worth.
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