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How to unlock Gigabyte HD 7970 OC voltage?

post #1 of 26
11/4/12 at 6:06am
Thread Starter 
As the title says, how can i unlock the voltage of my Gigabyte HD 7970 OC?
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post #2 of 26
11/4/12 at 7:13am
I just ordered one of these and I thought thier voltage is not locked.....
TheSadFlute
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TheSadFlute
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DyingHeart
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post #3 of 26
11/4/12 at 7:27am
Unfortunately there seems to be no way to unlock it. Friend has this card and tried at least 5 different BIOSes, none helped. All reviews said that GB 7970 is great for overclocking, but they have been made using older revision of the card which is unlocked frown.gif. Gigabyte 7970 GHz Edition seems to be a bit better for oc, it has stock voltage of 1.25v.
Omega Ray
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post #4 of 26
11/4/12 at 8:04am
Thread Starter 
It can't be true!.. How can i flash a bios? I've found one, that was the same as the HD 7970 used on HardOcp for their review of gigabyte, wrote on february 2012.. maybe it will works..
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post #5 of 26
11/4/12 at 7:20pm
Ya - its locked at the hardware level - i dont think anyone has been able to unlock it. I returned my GB 7970, and now playing with an Asus Matrix....not too impressed with this $500 either

probably going to back down to an old reference 7970 and just oc it as far as i can go. We're nearing the end of this GPU cycle anyways
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post #6 of 26
11/8/12 at 8:13am
Thread Starter 
I contacted Gigabyte to ask how to unlock the voltage and they have told me that the Lock is in the BIOS and that i have to flash the Eproom, obviusly breaking the warranty.. That's all.. Then i've asked what i need to flash to the Eproom and they haven't answered yet.. Someone know something? What do i have to flash to the Eproom? Probably another BIOS..
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post #7 of 26
11/8/12 at 12:27pm
No but could you please keep us updated. I have the same model and it only overclocks to 1070 on the core which is disapointing!
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post #8 of 26
11/8/12 at 12:27pm
Flash the rom from the Ghz ed. card, this one works great on my rev 2.1 OC

---> http://www.overclock.net/t/1294856/cant-increase-voltage-gigabyte-7970-windforce-3x-gv-r797oc-3gd/60#post_18558126
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post #9 of 26
11/8/12 at 12:28pm
RETURN IT

I bought one a couple months back and tried everything. Bios flash will do NOTHING.
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Veritas
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post #10 of 26
11/8/12 at 3:09pm
Quote:
Originally Posted by Bruennis View Post

RETURN IT
I bought one a couple months back and tried everything. Bios flash will do NOTHING.

I get 1256mV with the GB GHz bios, bench stable @1200Mhz. Gaming stable clock about 1170Mhz. With the stock bios I cant get it stable over 1070Mhz.



Anyways, returning the card cuz I cant monitor any temps except gpu temp. Ordered an Asus matrix platinum instead biggrin.gif
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