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soulmann (OP)
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May 22, 2013, 06:24:33 PM |
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Does anybody have this card? Can you change voltage?
Thank you.
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crazyates
Legendary
 Offline
Activity: 952
Merit: 1000
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May 22, 2013, 06:51:14 PM |
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Those cards are voltage locked. However, Gigabyte has an older BIOS that lowers the clocks AND the voltage, so that's your only option. Check it out. |
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notaek
Legendary
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Activity: 1268
Merit: 1009
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May 22, 2013, 07:03:58 PM |
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Those cards are voltage locked. However, Gigabyte has an older BIOS that lowers the clocks AND the voltage, so that's your only option. Check it out. Do NOT flash that BIOS. That is for a 7950, not the 7970. I have the 7970 you are talking about and the voltage is locked. You can flash the GHZ edition BIOS which takes you up to 1.256v but you cannot adjust it either. |
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soulmann (OP)
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May 22, 2013, 07:56:02 PM |
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Those cards are voltage locked. However, Gigabyte has an older BIOS that lowers the clocks AND the voltage, so that's your only option. Check it out. Do NOT flash that BIOS. That is for a 7950, not the 7970. I have the 7970 you are talking about and the voltage is locked. You can flash the GHZ edition BIOS which takes you up to 1.256v but you cannot adjust it either. Thank you. And what is the power consumption with stock voltage? What is the stock voltage? My goal is to downclock the voltage, like I did with sapphire 7970. |
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deadweasel
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May 22, 2013, 07:57:41 PM |
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Those cards are voltage locked. However, Gigabyte has an older BIOS that lowers the clocks AND the voltage, so that's your only option. Check it out. Do NOT flash that BIOS. That is for a 7950, not the 7970. I have the 7970 you are talking about and the voltage is locked. You can flash the GHZ edition BIOS which takes you up to 1.256v but you cannot adjust it either. Thank you. And what is the power consumption with stock voltage? What is the stock voltage? My goal is to downclock the voltage, like I did with sapphire 7970. How does the undervolting work with the 7970? Did it improve your hashrate? I think I'm at 1.175V... 1140 Engine and 1200 Mem, getting bout 671 avg. |
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soulmann (OP)
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May 22, 2013, 08:17:30 PM |
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How does the undervolting work with the 7970? Did it improve your hashrate? I think I'm at 1.175V... 1140 Engine and 1200 Mem, getting bout 671 avg.
No it doesnt improve hashrate. Low voltage = low temperature and low bills for electricity. |
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notaek
Legendary
Offline
Activity: 1268
Merit: 1009
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May 22, 2013, 08:35:29 PM |
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Those cards are voltage locked. However, Gigabyte has an older BIOS that lowers the clocks AND the voltage, so that's your only option. Check it out. Do NOT flash that BIOS. That is for a 7950, not the 7970. I have the 7970 you are talking about and the voltage is locked. You can flash the GHZ edition BIOS which takes you up to 1.256v but you cannot adjust it either. Thank you. And what is the power consumption with stock voltage? What is the stock voltage? My goal is to downclock the voltage, like I did with sapphire 7970. Stock voltage is 1170mV. You can't downvolt. With the GHz edition cards you can get the voltage down to 1163mV but it automatically adjusts based on the core clock. If I have a core clock of 1050MHz, it changes the voltage to 1219mV, and above 1100 it goes to 1256mV |
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deadweasel
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May 23, 2013, 12:14:29 AM |
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How does the undervolting work with the 7970? Did it improve your hashrate? I think I'm at 1.175V... 1140 Engine and 1200 Mem, getting bout 671 avg.
No it doesnt improve hashrate. Low voltage = low temperature and low bills for electricity. I see. If not for the free elec in my situation, I might consider it. o/ |
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erk
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June 04, 2013, 02:51:48 AM |
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I just got a GV-R797WF3-3GD GHz edition yesterday, I had a failed Gigabyte 7950 finally replaced under warranty, they had run out of 7950 so they upgraded me to a 7970.
The 7970 draws about 40 watts more measured at the wall, which is no big deal, but it also runs a lot hotter, the 7950 was sitting about 73C at 610MH/s with the fan at 50% the 7970 is siting at 75C at 600MH/s with the fan at 85%.
I can get well over 700kH/s out of it but up over 80C.
I heard that it might be possible to flash the device with non-GHz firmware to lower the voltage which might help cool it, does anyone know about that here? Otherwise I would have to look at a 3rd party cooling solution which I don't really want to do.
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notaek
Legendary
Offline
Activity: 1268
Merit: 1009
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June 04, 2013, 05:18:13 AM |
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I just got a GV-R797WF3-3GD GHz edition yesterday, I had a failed Gigabyte 7950 finally replaced under warranty, they had run out of 7950 so they upgraded me to a 7970.
The 7970 draws about 40 watts more measured at the wall, which is no big deal, but it also runs a lot hotter, the 7950 was sitting about 73C at 610MH/s with the fan at 50% the 7970 is siting at 75C at 600MH/s with the fan at 85%.
I can get well over 700kH/s out of it but up over 80C.
I heard that it might be possible to flash the device with non-GHz firmware to lower the voltage which might help cool it, does anyone know about that here? Otherwise I would have to look at a 3rd party cooling solution which I don't really want to do.
I could give you my rom file. I own a gigabyte 7970 non ghz and a 7970 ghz. I have flashed my ghz edition with the non ghz bios and the core clock stays at 1170mv on both cards. It works fine. It would be at your own risk though. |
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erk
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June 04, 2013, 05:21:52 AM |
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I just got a GV-R797WF3-3GD GHz edition yesterday, I had a failed Gigabyte 7950 finally replaced under warranty, they had run out of 7950 so they upgraded me to a 7970.
The 7970 draws about 40 watts more measured at the wall, which is no big deal, but it also runs a lot hotter, the 7950 was sitting about 73C at 610MH/s with the fan at 50% the 7970 is siting at 75C at 600MH/s with the fan at 85%.
I can get well over 700kH/s out of it but up over 80C.
I heard that it might be possible to flash the device with non-GHz firmware to lower the voltage which might help cool it, does anyone know about that here? Otherwise I would have to look at a 3rd party cooling solution which I don't really want to do.
I could give you my rom file. I own a gigabyte 7970 non ghz and a 7970 ghz. I have flashed my ghz edition with the non ghz bios and the core clock stays at 1170mv on both cards. It works fine. It would be at your own risk though. What's the firmware version number? I can probably grab it from their updates section if I know what I cam looking for. |
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notaek
Legendary
Offline
Activity: 1268
Merit: 1009
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June 04, 2013, 06:10:22 AM |
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I just got a GV-R797WF3-3GD GHz edition yesterday, I had a failed Gigabyte 7950 finally replaced under warranty, they had run out of 7950 so they upgraded me to a 7970.
The 7970 draws about 40 watts more measured at the wall, which is no big deal, but it also runs a lot hotter, the 7950 was sitting about 73C at 610MH/s with the fan at 50% the 7970 is siting at 75C at 600MH/s with the fan at 85%.
I can get well over 700kH/s out of it but up over 80C.
I heard that it might be possible to flash the device with non-GHz firmware to lower the voltage which might help cool it, does anyone know about that here? Otherwise I would have to look at a 3rd party cooling solution which I don't really want to do.
I could give you my rom file. I own a gigabyte 7970 non ghz and a 7970 ghz. I have flashed my ghz edition with the non ghz bios and the core clock stays at 1170mv on both cards. It works fine. It would be at your own risk though. What's the firmware version number? I can probably grab it from their updates section if I know what I cam looking for. Don't even know why I didn't think of that. You can find it here: I am using F72 |
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killerw
Member
Offline
Activity: 98
Merit: 10
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December 10, 2013, 09:40:18 AM |
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it works F72 na GV-R797WF3-3GD?
where to download the F72?
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Ancikv
Newbie
Offline
Activity: 46
Merit: 0
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December 16, 2013, 04:04:54 PM |
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A similar problem, how to solve?
GV-R797WF3-3GD rev 2.1
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