Topic: Low hashrate on 7970 scrypt? Under 700Kh/s? Here's what to do... - page 5. (Read 53692 times)
I just got my 3 gigabyte 7970s and so far I am getting 700 khs at 1040/1500. It looks like I won't need to do a bios flash. I have been having problems getting more than one card to work at a time though. Has anyone here gotten higher than 700, or is this the limit for a 7970?
Flash with this bios http://www.techpowerup.com/vgabios/127156/GigabyteHD7970.3072.120905.html
635 kh/s @ 900/1580 -I 13 -w 256 -g 2 TC 11200
Thanks to asmzx for this fix.
Just to say, i think i heard someone say using the Gigabyte BIOS on a Sapphire Vapor-x Ghz does not boot. I may be wrong though, just a warning as that guide states to use that BIOS for a sapphire vapor-x - I can 100% confirm the BIOS i said, which is a sapphire BIOS will work for the Vapor-x ghz.
Good to know that BIOS works for an XFX though, i had people tell me they got it working for XFX cards but forgot to ask which BIOS they used.
Hey, so I've made some changes with my setup. My XFX HD7970 DD can now reach 700 KH/s, and is stable at around 680 KH/s. I'm still tinkering with it, but I think it's possible to break the 700 KH/s + mark. Here is the guide that I used and a link to the bios that I used to flash the card:
The forum where I grabbed this from can be found here: https://bitcointalksearch.org/topic/m.1980690
Here is the solution for the 7970 Ghz card. Mine is a Sapphire 7970 Vapor.
Flash with this bios http://www.techpowerup.com/vgabios/127156/GigabyteHD7970.3072.120905.html
635 kh/s @ 900/1580 -I 13 -w 256 -g 2 TC 11200
Thanks to asmzx for this fix.
Flashing 7970 is a breeze, I'll tell you the steps I took to get it working.
Flash Sapphire 7970 Vapor:
Download Rufus http://rufus.akeo.ie/ or create a bootable USB drive
Get ATIFlash http://www.techpowerup.com/downloads/2230/ATIFlash_4.07.html
Copy ATIFlash and the bios to the USB drive
To boot from your USB, just press F8 after you power on your computer and it should bring up the boot menu, if not keep resetting until you get it.
Select your USB from there and it should boot you to DOS/ATIFlash.
Gets the device ID of the card
Use the number you got from the first step instead of 0 if it is different. Also change the name to whatever you named your BIOS.
For me, I named my BIOS "new.bin". Wait until it is successful and then reboot.
That's it, enjoy 630+ speeds without melting your card!
LTC Ld19ZpNDcnTKQr1b8K1dWSwRXPd6zSxPkN
Flash with this bios http://www.techpowerup.com/vgabios/127156/GigabyteHD7970.3072.120905.html
635 kh/s @ 900/1580 -I 13 -w 256 -g 2 TC 11200
Thanks to asmzx for this fix.
Flashing 7970 is a breeze, I'll tell you the steps I took to get it working.
Flash Sapphire 7970 Vapor:
Download Rufus http://rufus.akeo.ie/ or create a bootable USB drive
Get ATIFlash http://www.techpowerup.com/downloads/2230/ATIFlash_4.07.html
Copy ATIFlash and the bios to the USB drive
To boot from your USB, just press F8 after you power on your computer and it should bring up the boot menu, if not keep resetting until you get it.
Select your USB from there and it should boot you to DOS/ATIFlash.
Code:
atiflash.exe -i
Gets the device ID of the card
Code:
atiflash.exe -f -p 0 new.bin
Use the number you got from the first step instead of 0 if it is different. Also change the name to whatever you named your BIOS.
For me, I named my BIOS "new.bin". Wait until it is successful and then reboot.
That's it, enjoy 630+ speeds without melting your card!
LTC Ld19ZpNDcnTKQr1b8K1dWSwRXPd6zSxPkN
The forum where I grabbed this from can be found here: https://bitcointalksearch.org/topic/m.1980690
Being doing a bit more reading if your card is one with dual dvi's it is not the reference board it is xfx's own spec and flashing a reference BIOS will brick it 
Hmm i wouldn't of thought it would brick it - you should just be able to boot off another card and re-flash.
If flashing to a reference BIOS doesn't work as you say, i would of thought there would be a suitable BIOS somewhere, it would just be about finding the right one.
I'm going to start taking more details down when i help people.
If anyone has been helped by this using a non sapphire card, can you please post the exact card you have and the exact BIOS you flashed with that worked.
Cheers
I get artifacts when I put in your settings and my card crashes after 20 seconds. After that it is stuck at 500/150mhz till I restart my computer. I get this everytime I'm going to high with my card. Anyone know how I can fix this?
Which card do you have?
try increasing the gpu voltage a tiny bit.
I get artifacts when I put in your settings and my card crashes after 20 seconds. After that it is stuck at 500/150mhz till I restart my computer. I get this everytime I'm going to high with my card. Anyone know how I can fix this?
Being doing a bit more reading if your card is one with dual dvi's it is not the reference board it is xfx's own spec and flashing a reference BIOS will brick it
...still haven't got the sweet spot quite right...
Nice post. I have two XFX 7970 and will try the BIOS flash and will report back. As for finding the sweet spot, just close out afterburner and you will see it.
tb
Its the fx-797a-td
Its the double dissipation non black edition
Its the double dissipation non black edition
I also have the XFX Double D FX797GTDFC and can't get over 500-550 KH with it. I can get 680-700MH/s though. Been kind of pissed since I bought them.
Then i would think a bios flash would work
I have a spare card there so even if it doesn't take I won't have to blind flash the original I suppose, be mighty pissed if I f-ed it up though lol
Its the fx-797a-td
Its the double dissipation non black edition
Its the double dissipation non black edition
I also have the XFX Double D FX797GTDFC and can't get over 500-550 KH with it. I can get 680-700MH/s though. Been kind of pissed since I bought them.
Then i would think a bios flash would work
Its the fx-797a-td
Its the double dissipation non black edition
Its the double dissipation non black edition
I also have the XFX Double D FX797GTDFC and can't get over 500-550 KH with it. I can get 680-700MH/s though. Been kind of pissed since I bought them.
Its the fx-797a-td
Its the double dissipation non black edition
Its the double dissipation non black edition
Have you seen this flash done on the xfx 7970 cards which didn't use the reference pcb.
What is the exact card? e.g black edition / double d black edition
I had a guy who i think said he had a black edition and got it up to 700Kh/s but i can't remember which BIOS he used.
Very nice post
please tell me smth, i have for instance and RADEON 7970 cards, and MSI ones and HIS ones. I go for insance on the HIs ones here--> http://www.techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=HIS&model=HD+7970&interface=&memType=&memSize=3072
Which one i should choose? ??
please tell me smth, i have for instance and RADEON 7970 cards, and MSI ones and HIS ones. I go for insance on the HIs ones here--> http://www.techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=HIS&model=HD+7970&interface=&memType=&memSize=3072
Which one i should choose? ??
Hmm i'm not sure about the HIS - i don't know anyone who has tried the BIOS flash for that card.
What is your hashrate on scrypt currently?
Very nice post
please tell me smth, i have for instance and RADEON 7970 cards, and MSI ones and HIS ones. I go for insance on the HIs ones here--> http://www.techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=HIS&model=HD+7970&interface=&memType=&memSize=3072
Which one i should choose? ??
please tell me smth, i have for instance and RADEON 7970 cards, and MSI ones and HIS ones. I go for insance on the HIs ones here--> http://www.techpowerup.com/vgabios/index.php?architecture=ATI&manufacturer=HIS&model=HD+7970&interface=&memType=&memSize=3072
Which one i should choose? ??
Have you seen this flash done on the xfx 7970 cards which didn't use the reference pcb.
What's the worst that could happen if the bios flash doesn't work right? Will my card be dead? And I am going to have a 690 as my main card, with three 7970s for mining. Is there any way I can accidentally flash my nvidia card with the AMD drivers?
The worst that could happen would be you would brick your card, unlikely but possible. But if the BIOS didn't work, you should just be able to boot off another card and re-flash the BIOS.
You could accidentally flash it if you didn't put the correct device number in the flashing utility - If you are worried about that just take it out when flashing.
It's up to you, i'd do it, but i do take risks with my tech sometimes..
What's the worst that could happen if the bios flash doesn't work right? Will my card be dead? And I am going to have a 690 as my main card, with three 7970s for mining. Is there any way I can accidentally flash my nvidia card with the AMD drivers?
I've got a lot of different 7970 cards and the XFX ones are the worst i've ever used. My Gigabyte ones will fly over 700 a piece of cake, my Diamond ones will do over 600 without much effort, but the XFX ones i'd be lucky to hit 550 no matter how much tweaking or OC'ing.
But did you flash? It's the flashing that usually gets them from 550 Kh/s up to 700Kh/s...
The XFX ones i have are 925 core edition, isn't that what i'd want the bios to be anyway? Or is there more to it than that?
There is more to it. It's the actual BIOS, rather than the settings the BIOS sets the card to, that seems to be the problem on certain cards.
It depends which xfx you have, but i had a couple of guys now i think who have gone from 550Kh/s up to 700Kh/s with certain XFX cards after a BIOS flash. If you are using the setting i suggested and still only getting 550Kh/s then i'm pretty confident it's the BIOS holding it back - I am not sure which XFX Bios would work, but you'd have to have a look.
I've got a lot of different 7970 cards and the XFX ones are the worst i've ever used. My Gigabyte ones will fly over 700 a piece of cake, my Diamond ones will do over 600 without much effort, but the XFX ones i'd be lucky to hit 550 no matter how much tweaking or OC'ing.
But did you flash? It's the flashing that usually gets them from 550 Kh/s up to 700Kh/s...
The XFX ones i have are 925 core edition, isn't that what i'd want the bios to be anyway? Or is there more to it than that?
I've got a lot of different 7970 cards and the XFX ones are the worst i've ever used. My Gigabyte ones will fly over 700 a piece of cake, my Diamond ones will do over 600 without much effort, but the XFX ones i'd be lucky to hit 550 no matter how much tweaking or OC'ing.
But did you flash? It's the flashing that usually gets them from 550 Kh/s up to 700Kh/s...
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