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Can't increase voltage - Gigabyte 7970 WindForce 3X GV-R797OC-3GD - Page 5

post #41 of 205
I don't think it would make a difference because past 1285MHz it begins to artifact all over the place. Even a small increase of 5MHz will cause instability. 1285 I believe is the card's maximum core clock. If any 7950 is going to do 1200+ on the core it should be the Gigabyte 7950 as it has the best cooler of all custom 7950s. It's stable on air but keep in mind that I have the fans cranked to 70% which is super loud and not very practical at all. The memory I believe can be pushed a little further maybe another 50-100MHz but I am completely satisfied at this point with my $300 purchase. Btw, what do 670s score bone stock in 3DMark and Heaven?
post #42 of 205
Quote:
Originally Posted by Bruennis View Post

I don't think it would make a difference because past 1285MHz it begins to artifact all over the place. Even a small increase of 5MHz will cause instability. 1285 I believe is the card's maximum core clock. If any 7950 is going to do 1200+ on the core it should be the Gigabyte 7950 as it has the best cooler of all custom 7950s. It's stable on air but keep in mind that I have the fans cranked to 70% which is super loud and not very practical at all. The memory I believe can be pushed a little further but I am completely satisfied at this point with my $300 purchase. Btw, would do 670s score bone stock in 3DMark and Heaven?

EDIT : results posted below.
Edited by HeadlessKnight - 9/9/12 at 11:29pm
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post #43 of 205
Quote:
Originally Posted by raghu78 View Post

for 1200+ Mhz the only cooler really capable of cooling well seems to be the gigabyte windforce, sapphire vapor-x and his iceq. i think the sapphire dual x is good to hit 1200 Mhz. but beyond that its limited by the cooler.
I'd have to disagree, the Windforce being top card in CFX would give me heat issues if I didn't have the voltage near stock. When my Dual-X is on top it only runs about 5c hotter than my bottom card, @ 1.3 volts Sapphire Card on top runs about 68 or less and the Windforce runs at about 60-62 or less. With good ambient temps, the top card usually is around 63 and the bottom around 58-59. Keep in mind I do have two AF120s blowing right on the cards as well.
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post #44 of 205
That's a stock EVGA GTX 670 FTW (1006 MHz/ 1228 MHz Max Turbo Boost/ 6208 MHz Memory)



3DMark11
http://www.3dmark.com/3dm11/4349783
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post #45 of 205
Hello everyone, I'm new around here!

Sorry for bumping this pretty old thread, but I've recently bought the same card and have the same problem of not being able to increase the voltage above 1.170V/1.175V. mad.gif While searching for similar issues I found this thread.

It's a revision 2.1 board and EasyBoost says the BIOS is F60. I've tried the oldest BIOS I could find for this card, it didn't. MSI AB, OC Guru II and TRIXX do not work. Has anybody found a fix or a workaround for this in the meantime? I would even be content with a BIOS that simply has higher voltage like 1.25V, even if not adjustable. I wanted to try the BIOS of the Gigabyte GHz Edition 7970 but couldn't find it, it's not on their site or in techpowerup's BIOS database.

GPU-Z screenshot:
gkjes.gif
Quote:
Originally Posted by Bruennis View Post

Out of frustration I even tried flashing to the GHz Edition bios which to my surprise worked and increased the voltage to 1.25X
Was this the BIOS for the Gigabyte GHz Edition (GV-R797TO-3GD) or a generic BIOS for reference 7970s? Could you tell me where I can find it? I would very much like to try this as well, right now I can't even get 1075MHz stable, maybe with it I could at least get over 1100.
post #46 of 205
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post #47 of 205
Thanks, I just tried the reference GHz BIOS. While it does work and increase voltage to 1.256V like I wanted, it also makes the card highly unstable, even at stock 1000/1375MHz clocks, so unstable that even Firefox causes crashes.mad.gif Voltage still wasn't adjustable from MSI AB, but this has at least confirmed for me that it isn't somehow hardware locked to 1.17V. I have a feeling that a proper BIOS (maybe from Gigabyte's in-house GHz Edition) could fix or at least bypass the voltage problem.

I'm talking to Gigabyte support as well, right now they're obviously being evasive regarding the issue, I don't think I'll get anywhere.mad.gif
post #48 of 205
Quote:
Originally Posted by Bloodred217 View Post

Thanks, I just tried the reference GHz BIOS. While it does work and increase voltage to 1.256V like I wanted, it also makes the card highly unstable, even at stock 1000/1375MHz clocks, so unstable that even Firefox causes crashes.mad.gif Voltage still wasn't adjustable from MSI AB, but this has at least confirmed for me that it isn't somehow hardware locked to 1.17V. I have a feeling that a proper BIOS (maybe from Gigabyte's in-house GHz Edition) could fix or at least bypass the voltage problem.
I'm talking to Gigabyte support as well, right now they're obviously being evasive regarding the issue, I don't think I'll get anywhere.mad.gif

Hate to break it to ya bud but the card is voltage locked. I know because I had one and returned it after trying just about everything. My card was stable with the GHz Edition bios but a Tahiti card that can't overclock is no good in my opinion. I would recommend returning it if you can and getting a different 7970 that is unlocked and can overclock that way you get maximum performance for money spent. Sapphire has some good choices
post #49 of 205
Thread Starter 
Quote:
Originally Posted by R35ervoirFox View Post

Sorry guys for not updating sooner, but the week before last I returned this card.
I am totally convinced that gigabyte changed this card so that u can not change voltage, they have no intention of helping you to change voltage as I contacted their gpu department.
If you intend to volt this card, I would obv suggest you get another model. If you don't intend to volt, then the card is best suited to the tropics where the fantastic cooler might actually be useful.

Quote:
Originally Posted by Bloodred217 View Post

Thanks, I just tried the reference GHz BIOS. While it does work and increase voltage to 1.256V like I wanted, it also makes the card highly unstable, even at stock 1000/1375MHz clocks, so unstable that even Firefox causes crashes.mad.gif Voltage still wasn't adjustable from MSI AB, but this has at least confirmed for me that it isn't somehow hardware locked to 1.17V. I have a feeling that a proper BIOS (maybe from Gigabyte's in-house GHz Edition) could fix or at least bypass the voltage problem.
I'm talking to Gigabyte support as well, right now they're obviously being evasive regarding the issue, I don't think I'll get anywhere.mad.gif

Just read the thread dude, you can't change the voltage on recent models. I tried a lot of different bios's and ofc the ghz bios, another dude already stated in this thread that it doesn't work.
This isn't a reference card, the ghz bios is only for reference cards.
post #50 of 205
Quote:
Originally Posted by Bruennis View Post

Hate to break it to ya bud but the card is voltage locked. I know because I had one and returned it after trying just about everything. My card was stable with the GHz Edition bios but a Tahiti card that can't overclock is no good in my opinion. I would recommend returning it if you can and getting a different 7970 that is unlocked and can overclock that way you get maximum performance for money spent. Sapphire has some good choices
Funny thing, I initially ordered a Sapphire HD 7970 Dual-X but it was damaged during transportation. No other Sapphire cards were in stock, so I went for this one after reading some good reviews. I don't think I'll be able to return it, I'm probably stuck with this dud.
Quote:
Originally Posted by R35ervoirFox View Post

Just read the thread dude, you can't change the voltage on recent models. I tried a lot of different bios's and ofc the ghz bios, another dude already stated in this thread that it doesn't work.
This isn't a reference card, the ghz bios is only for reference cards.
I have read the thread, but things can change and workarounds can pop up, it was worth a try. Same goes for the GHz BIOS, I've seen people saying it worked well on some custom 7970s too, couldn't hurt to see if it improved anything or not.
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