How to undervolt Gigabyte HD 7970 OC

[drlukacs]

I am curious what experience others had with this particular card in terms of undervolting.

If you could be so kind to post parameters and methods (i.e., software or BIOS used), I would much appreciate.

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[computerparts]

If your card is a rev.2 then the only thing you can do is flash the bios.

[drlukacs]

If your card is a rev.2 then the only thing you can do is flash the bios.

Do you have concrete numbers (voltage, clock, memory settings) that you recommend?

What hash rate did you get with them?

[Sidorovich]

I am curious what experience others had with this particular card in terms of undervolting.

If you could be so kind to post parameters and methods (i.e., software or BIOS used), I would much appreciate.

Are you having the same problem as me where the voltage is stuck at 1.17v?

[notaek]

Fortunately these cards aren't hardware locked.  I have flashed my card to 1.256mv.  At this point, I guess we just have to look for a BIOS that comes with lowered voltages.

[BinaryTristar]

I have a few of these cards too, all but one are locked at 1.17. The oddball for some reason is locked at 1.11 and it runs hotter than the rest. What BIOS is everyone flashing these with to unlock the voltage? Thanks

[drlukacs]

I have a few of these cards too, all but one are locked at 1.17. The oddball for some reason is locked at 1.11 and it runs hotter than the rest. What BIOS is everyone flashing these with to unlock the voltage? Thanks

"Unlocking" voltage is not the right phrase, but what one can do is to flash the card with a BIOS that has a different voltage setting. That will still make the voltage "locked" in some way, but at a different value.

The question is whether the card will be stable that way.

[BinaryTristar]

Ahh ok, because I thought the term was "voltage locked". My 7850's are "voltage unlocked" as I can adjust it in Afterburner and other tools. Was hoping for the same on this, but an alternate firmware may work also if it is stable. Thanks.

[pajak666]

I have a few of these cards too, all but one are locked at 1.17. The oddball for some reason is locked at 1.11 and it runs hotter than the rest. What BIOS is everyone flashing these with to unlock the voltage? Thanks

"Unlocking" voltage is not the right phrase, but what one can do is to flash the card with a BIOS that has a different voltage setting. That will still make the voltage "locked" in some way, but at a different value.

The question is whether the card will be stable that way.

the card will be more stable with official bios, than messed up by some software
F43 official gigabyte bios

[drlukacs]

the card will be more stable with official bios, than messed up by some software
F43 official gigabyte bios

F43 is a BIOS for 7950 cards, not 7970.

Are you nevertheless suggesting that one would get better results with downgrading to a 7950 BIOS?

[pajak666]

sorry my bad, I messed up card models