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Topic: Low Hash- Gigabyte HD 7970(R797OC-3GD) BIOS Flash Help - page 2. (Read 11996 times)

sr. member
Activity: 252
Merit: 250
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr
whati is you original bios if it come with F80, you wont' be able to falsh it with 7950 f43 bios, and it won't get higher than 700 650kh/s maybe

if it come with f72 bios you can flash it with 7950 f43 bios an it can run 730khs @ 1040 1250


Not sure what F# the original Bios was but it was this : BIOS  015.022.000.004
Which do you recommend me going to in the end? and do you possibly have a link so I can flash that now before going forward?
I found this link but do not see a F43 : http://www.gigabyte.com/products/product-page.aspx?pid=4102#bios
I see a F3, F72, F41_A and f2.

There is also this link with more Gigabyet cards. I do have the r79703GD model

http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970

Basically it looks like i kind of have two options in Bios picking..a 1100/1500 or 1000/1375...any ideas on which would be the best to continue my testing? Thanks!!

it is 7950 bios
to check f# use gigabyte utility

so for a 7970 then a F43 bios is a no go? right now i am running stable at 640 kh/s with a 925/1000 but running temp at around 83/84 so higher then i would like. Anything above a 940 engine seems to go black screen. Going to do some more testing tonight and keep the good fight coming..at least i am out of the 500's now..yes!
sr. member
Activity: 432
Merit: 250
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr
whati is you original bios if it come with F80, you wont' be able to falsh it with 7950 f43 bios, and it won't get higher than 700 650kh/s maybe

if it come with f72 bios you can flash it with 7950 f43 bios an it can run 730khs @ 1040 1250


Not sure what F# the original Bios was but it was this : BIOS  015.022.000.004
Which do you recommend me going to in the end? and do you possibly have a link so I can flash that now before going forward?
I found this link but do not see a F43 : http://www.gigabyte.com/products/product-page.aspx?pid=4102#bios
I see a F3, F72, F41_A and f2.

There is also this link with more Gigabyet cards. I do have the r79703GD model

http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970

Basically it looks like i kind of have two options in Bios picking..a 1100/1500 or 1000/1375...any ideas on which would be the best to continue my testing? Thanks!!

it is 7950 bios
to check f# use gigabyte utility
full member
Activity: 193
Merit: 100
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr


My GV-R797OC-3GD rev 2.1 gets about 720Kh/s with the following
Code:
cgminer.exe --scrypt -o stratum+tcp://xxxx:xxx -u xxxx -p xxxx --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1042 --gpu-memclock 1500

Catalyst 13.3
BIOS 015.025.000.007.000000
GPU_MAX_ALLOC_PERCENT unset

Hope that helps Wink

This command is getting me 720khash on the same card/rev.

Thanks for sharing Smiley
sr. member
Activity: 252
Merit: 250

My GV-R797OC-3GD rev 2.1 gets about 720Kh/s with the following
Code:
cgminer.exe --scrypt -o stratum+tcp://xxxx:xxx -u xxxx -p xxxx --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1042 --gpu-memclock 1500

Catalyst 13.3
BIOS 015.025.000.007.000000
GPU_MAX_ALLOC_PERCENT unset

Hope that helps Wink

What SDK version are you running btw? and are you on 13.3 beta 3? Installing that now with SDk pkg installed and everything in it but thinking I should reinstall and uncheck SDK and then install 2.7?

I'm running driver's included sdk. I just checked 13.6b2 and they seem to be a little better than 13.3 (doing around 730Kh/s @1042/1500).
My preferred clock ratios are
1042/1500 ~730Kh/s
995/1250 ~690Kh/s

Thanks for the update! Seems to be when I use the default clock 1375 i cannot go past 940 on engine speed as I seem to go black then crash after a few minutes after..running stable right now a new config I am trying with tc 8192 and 925/1000 and getting 650 khs. Wont be happy till i am stable at 700+ so will keep trying. Maybe your 995/1250 will bump me up a bit. Will be in touch and thanks again!
full member
Activity: 131
Merit: 108

My GV-R797OC-3GD rev 2.1 gets about 720Kh/s with the following
Code:
cgminer.exe --scrypt -o stratum+tcp://xxxx:xxx -u xxxx -p xxxx --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1042 --gpu-memclock 1500

Catalyst 13.3
BIOS 015.025.000.007.000000
GPU_MAX_ALLOC_PERCENT unset

Hope that helps Wink

What SDK version are you running btw? and are you on 13.3 beta 3? Installing that now with SDk pkg installed and everything in it but thinking I should reinstall and uncheck SDK and then install 2.7?

I'm running driver's included sdk. I just checked 13.6b2 and they seem to be a little better than 13.3 (doing around 730Kh/s @1042/1500).
My preferred clock ratios are
1042/1500 ~730Kh/s
995/1250 ~690Kh/s
sr. member
Activity: 252
Merit: 250
never buy gigabyte cards

Gigalock

The voltage lock shouldn't be an issue mine are locked and I still got them hashing over 700Kh/s. Infact, they're doing 770Kh/s each atm and sitting between 65-75C. It was a pain in the arse to get them to play nice but persistence is the key to virtue - also an open rig setup for proper cooling and the right command line helped massively. See below for imagery! Wink

Sexy Image of Rig

Miner Monitor Stats

BIG UPDATE!!!!  Installed 13.3 and it did nothing actually made the hash rate spike all over the place in a 2-40 kh/s range. I uninstalled then installed 13.6 beta 2 drivers.

I chose this config to start and it jumped to 750 and hit even 780!!!  :

Code:
--gpu-engine 1100 --gpu-memclock 1500 --thread-concurrency 8192 -g 2 -w 256 -I 13

a few minutes later screen went black and computer crashed :/  Brought engine down to 1045 and memclock to 1450 and am running at 730 kh/s at about 81temp at the moment. Just started it though a few minutes ago. Atlas 13.6 and the updated BIOS did some magic trick and can now play with the rest to see what doesnt crash the GPU. Thanks guys!!!!

Awesome stuff mate, stoked you got there in the end haha you see, no need to have 346423874623 options on CGMiner startup. A simple clean command line and the help of a BIOS flash coupled with latest drivers (bleeding edge too!) got you there in the end. Beta drivers ftw!! Just curiously what was the temp before the screen went black? It probably shut down cause it overheated I'm thinking. They really do run rather hot and require decent cooling to keep them stable and free from burning out. Those pesky VRM's have piss poor cooling on their own and I had to move the entire setup out from an open case onto a rack with adequate spacing just to keep the temps down :\

Really happy you got things going in the end Cheesy


At the moment running at around 83-85 the screen seems to go black and computer freezes so its not going to crazy to shut it off right? Had to run out for a bit and let it go with a 1050/1500 on 22400 TC and came back to a crashed computer so that is where I am at now. During some testing yesterday I was able to get it to 730kh/s but that was with -I 20 and it ran past 87temp so I shut it down and scratched that config. I think right now I am going to start back from square one with the readme on these drivers and see what I get. So close I can taste it!

edit*update*: Went through the readme again and didn't have much luck as everything kept blacking out or freezing. I came up with a TC of 22400 again then messed memclock and started crashing GPU at 1650 so brought it down to 1625 and started engine speed of 925(around .56) as suggested which started with a 480 kh/s. Slowly worked my way up then around 970 with a 530 kh/s speed it crashed again. At the moment anything I seem to try brings the computer to a black then freeze. I even tried going from 1375 clock and 1000 engine which were defaults for MSI afterburner and yet crash again. So now I can get the speed but always going to black screen? Would that be 13.6 beta 2 drivers bugging out or is that something with my clock and engine ratio? confused yet again but looking up!
full member
Activity: 192
Merit: 100
Just an average guy with an average job!
never buy gigabyte cards

Gigalock

The voltage lock shouldn't be an issue mine are locked and I still got them hashing over 700Kh/s. Infact, they're doing 770Kh/s each atm and sitting between 65-75C. It was a pain in the arse to get them to play nice but persistence is the key to virtue - also an open rig setup for proper cooling and the right command line helped massively. See below for imagery! Wink

Sexy Image of Rig

Miner Monitor Stats

BIG UPDATE!!!!  Installed 13.3 and it did nothing actually made the hash rate spike all over the place in a 2-40 kh/s range. I uninstalled then installed 13.6 beta 2 drivers.

I chose this config to start and it jumped to 750 and hit even 780!!!  :

Code:
--gpu-engine 1100 --gpu-memclock 1500 --thread-concurrency 8192 -g 2 -w 256 -I 13

a few minutes later screen went black and computer crashed :/  Brought engine down to 1045 and memclock to 1450 and am running at 730 kh/s at about 81temp at the moment. Just started it though a few minutes ago. Atlas 13.6 and the updated BIOS did some magic trick and can now play with the rest to see what doesnt crash the GPU. Thanks guys!!!!

Awesome stuff mate, stoked you got there in the end haha you see, no need to have 346423874623 options on CGMiner startup. A simple clean command line and the help of a BIOS flash coupled with latest drivers (bleeding edge too!) got you there in the end. Beta drivers ftw!! Just curiously what was the temp before the screen went black? It probably shut down cause it overheated I'm thinking. They really do run rather hot and require decent cooling to keep them stable and free from burning out. Those pesky VRM's have piss poor cooling on their own and I had to move the entire setup out from an open case onto a rack with adequate spacing just to keep the temps down :\

Really happy you got things going in the end Cheesy
hero member
Activity: 770
Merit: 500
sr. member
Activity: 252
Merit: 250
BIG UPDATE!!!!  Installed 13.3 and it did nothing actually made the hash rate spike all over the place in a 2-40 kh/s range. I uninstalled then installed 13.6 beta 2 drivers.

I chose this config to start and it jumped to 750 and hit even 780!!!  :

Code:
--gpu-engine 1100 --gpu-memclock 1500 --thread-concurrency 8192 -g 2 -w 256 -I 13

a few minutes later screen went black and computer crashed :/  Brought engine down to 1045 and memclock to 1450 and am running at 730 kh/s at about 81temp at the moment. Just started it though a few minutes ago. Atlas 13.6 and the updated BIOS did some magic trick and can now play with the rest to see what doesnt crash the GPU. Thanks guys!!!!
sr. member
Activity: 252
Merit: 250
Your PSU is more than enough.

A 7970 draws 350W max OC'd.

Thank you! thought that was the case but wanted to double check so that variable wouldn't be added to the 15678,000 others i am dealing with Wink  thanks!




My GV-R797OC-3GD rev 2.1 gets about 720Kh/s with the following
Code:
cgminer.exe --scrypt -o stratum+tcp://xxxx:xxx -u xxxx -p xxxx --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1042 --gpu-memclock 1500

Catalyst 13.3
BIOS 015.025.000.007.000000
GPU_MAX_ALLOC_PERCENT unset

Hope that helps Wink

What SDK version are you running btw? and are you on 13.3 beta 3? Installing that now with SDk pkg installed and everything in it but thinking I should reinstall and uncheck SDK and then install 2.7?
hero member
Activity: 868
Merit: 500
CryptoTalk.Org - Get Paid for every Post!
Your PSU is more than enough.

A 7970 draws 350W max OC'd.
sr. member
Activity: 252
Merit: 250
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr
whati is you original bios if it come with F80, you wont' be able to falsh it with 7950 f43 bios, and it won't get higher than 700 650kh/s maybe

if it come with f72 bios you can flash it with 7950 f43 bios an it can run 730khs @ 1040 1250


Not sure what F# the original Bios was but it was this : BIOS  015.022.000.004
Which do you recommend me going to in the end? and do you possibly have a link so I can flash that now before going forward?
I found this link but do not see a F43 : http://www.gigabyte.com/products/product-page.aspx?pid=4102#bios
I see a F3, F72, F41_A and f2.

There is also this link with more Gigabyet cards. I do have the r79703GD model

http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970

Basically it looks like i kind of have two options in Bios picking..a 1100/1500 or 1000/1375...any ideas on which would be the best to continue my testing? Thanks!!
sr. member
Activity: 432
Merit: 250
Thanks for the advice everyone! Going to do another BIOS flash with BIOS 015.025.000.007.000000 now that I am fully comfortable doing it and then reinstall with 13.3 and try nitrogenetics configs.  The if no go reinstall with a 13.6 beta 2 and try Joori configs. If no go then off to sprint347 configs in 13.5 catalyst. Something is bound to make happen but one thing I think may be the issue now is I have a voltage locked card which seems to be a GIGABYTE hardware issue. Through some settings I was actually able to get 730/750 but was using I -20 and -g 1 with 1500 memclock and 1100 engine but was shooting up temp like no other which is imagined and turned it off when it climbed to 86 and kept going. When used -20 for -g 2 it had a 20-30 Kh/s so not sure why that is but still working through all the trials of fun :/ Will keep you all posted on the progress but progress is being made..yes! p.s. if you are buying a 7970 probably would stay away from GIGABYTE with locked voltage which kinda blows

p.s. could my 650w PSU have anything to do with it? it says 550w is needed so assuming i should be ok right? just running this one GPU and the CPU on this machine. Pure miner.

as long as there are workaround for new card, i suggest you not to buy it
not worth now

but if it have workaround, giga is best choice regardless of voltlock
sr. member
Activity: 432
Merit: 250
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr
whati is you original bios if it come with F80, you wont' be able to falsh it with 7950 f43 bios, and it won't get higher than 700 650kh/s maybe

if it come with f72 bios you can flash it with 7950 f43 bios an it can run 730khs @ 1040 1250
sr. member
Activity: 252
Merit: 250
Thanks for the advice everyone! Going to do another BIOS flash with BIOS 015.025.000.007.000000 now that I am fully comfortable doing it and then reinstall with 13.3 and try nitrogenetics configs.  The if no go reinstall with a 13.6 beta 2 and try Joori configs. If no go then off to sprint347 configs in 13.5 catalyst. Something is bound to make happen but one thing I think may be the issue now is I have a voltage locked card which seems to be a GIGABYTE hardware issue. Through some settings I was actually able to get 730/750 but was using I -20 and -g 1 with 1500 memclock and 1100 engine but was shooting up temp like no other which is imagined and turned it off when it climbed to 86 and kept going. When used -20 for -g 2 it had a 20-30 Kh/s so not sure why that is but still working through all the trials of fun :/ Will keep you all posted on the progress but progress is being made..yes! p.s. if you are buying a 7970 probably would stay away from GIGABYTE with locked voltage which kinda blows

p.s. could my 650w PSU have anything to do with it? it says 550w is needed so assuming i should be ok right? just running this one GPU and the CPU on this machine. Pure miner.
full member
Activity: 192
Merit: 100
Just an average guy with an average job!
tiny update! So i ended up flashing the GPU with the most updated GIGABYTE BIOS and am now getting 590 kh/s almost out of the box settings =D that is about 40 more then I was able to get past for the last week so progress finally made.

I used the F3BIOS to flash : ATI Source BIOS Version:015.032.000.004
http://www.gigabyte.com/products/product-page.aspx?pid=4102&dl=1#bios

I then went back to 13.1 catalyst and am on 2.7 SDK as when I try to instal 2.8 SDK i get something about installation pkg error fail?

So the fact that I have pushed past the 550 mark pretty easily on the new BIOS means I am off to a good start right? Now to just get past 600 and maybe 7? If you think I should flash with a different BIOS please let me know as there were many to choose from and just chose the most recent. Thanks guys!

thanks for the advice! going to keep with 1500 mem as that seems to be pretty norm for everyone else are just start messing with engine more so. Tempted to go to 13.6 as your the only one to say good things so far..hmmm what windows are your running?

Good stuff, glad you got an improvement through flashing looks like there's still hope for the card yet! If you're hitting 590Kh/s then realistically 600+ isn't that far off. It's a matter of just tweaking now and finding the right driver. I'm using Windows 7 Ultimate and Catalyst 13.6 beta2 drivers on my rig and one of the cards has a dummy plug I made with a few resistors. Despite the fact recent versions of catalyst dictate you no longer need a dummy plug, I find I still have to use one otherwise I'll either get a series of ADL/OpenCL errors and/or one of the cards will hash stupidly low. Like in the 30Kh/s-70Kh/s range :\

Also, why are people using both --shaders and --thread-concurrency together.. the latter overrides any value set by the former so it's kinda pointless.. as is lookup-gap since it's already set at a default of 2 anyway. I had so much trouble fiddling with settings wondering why my cards weren't hashing as everyone else's or even remotely close. Point being, 700+Kh/s should be easy to attain with minimal input parameters unless ofcourse the card really is defective or just plain shit  Grin
full member
Activity: 131
Merit: 108
I think I am ready to flash my bios but need a little help as this will be my first time doing a flash but am confident with a little guidance on the right BIOS I can make it happen. I bought a used Gigabyte HD 7970 3072MB GDDRS the other day on craigslist and have tried everything to get past 550 Kh/s via scrypt mining. When mining BTC i get around 650 Mh/s but havent played to much with that area as I am trying to get the scrypt mining down. At this point It seems I have tried almost everyones configurations on the forums and even started from ground up with the README file and still nothing above 550 Kh/s. That is also using -g 1 as when i use -g 2 it stays under 390 kh/s? I am thinking at this point my BIOS may be too old on the card as these are my current stats on my windows 7 rig:

Display device       : AMD Radeon HD 7900 Series on Tahiti GPU
Display driver       : 9.14.10.0969, Catalyst 13.4
BIOS                 : 015.022.000.004
GPU: Gigabyte HD 7970 3072MB GDDRS - GV-R797OC-3GD


Looking at http://www.techpowerup.com/vgabios/index.php?manufacturer=Gigabyte&model=HD+7970 there seems to be much newer BIOS versions although I am not sure which BIOS to flash with since i have a OC model and I have read that is not the best for scrypt mining hence needing to try a TO??

My current config for cgminer is :

Code:
setx GPU_MAX_ALLOC_PERCENT 100
cgminer --scrypt -w 256 -g 1 --thread-concurrency 8192 --intensity 13 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100 -o http://mining.usa.la.hypernova.pw:9332 -u worker.1 -p xxxxx

As I mentioned I tried -g 2 as suggested from everyone and every time it drops dramatically down to 380 Kh/s from 540 when using -g 1. When following the ReadME file for Cgminer my ThreadConcurrency speed came out to be 22400 but have read to use 8192 and see no difference in speed between the two. So at this point I am thinking a flash of the bios will be the way to go although I am still up for hearing anyones suggestions Smiley Thanks for the help in advance! this is driving me crazy..rawwr


My GV-R797OC-3GD rev 2.1 gets about 720Kh/s with the following
Code:
cgminer.exe --scrypt -o stratum+tcp://xxxx:xxx -u xxxx -p xxxx --intensity 13 -g 2 --thread-concurrency 8192 --lookup-gap 2 --gpu-engine 1042 --gpu-memclock 1500

Catalyst 13.3
BIOS 015.025.000.007.000000
GPU_MAX_ALLOC_PERCENT unset

Hope that helps Wink
full member
Activity: 193
Merit: 100
I spent weeks faffing around and couldn't get past 550kash with the same card.

Clock speeds set in Afterburner 1045/1500.

I use cgminer, make sure you run this first:

Code:
setx GPU_MAX_ALLOC_PERCENT 100

I use the following command and get 650khash+

Code:
cgminer.exe --scrypt -o http://pool:port -u xxx -p xxx --worksize 256 -g2 -I 13 --lookup-gap 2 --shaders 2048 --thread-concurrency 8192

I user Catalyst 13.5, haven't touched bios, voltages etc.

sr. member
Activity: 252
Merit: 250
tiny update! So i ended up flashing the GPU with the most updated GIGABYTE BIOS and am now getting 590 kh/s almost out of the box settings =D that is about 40 more then I was able to get past for the last week so progress finally made.

I used the F3BIOS to flash : ATI Source BIOS Version:015.032.000.004
http://www.gigabyte.com/products/product-page.aspx?pid=4102&dl=1#bios

I then went back to 13.1 catalyst and am on 2.7 SDK as when I try to instal 2.8 SDK i get something about installation pkg error fail?

So the fact that I have pushed past the 550 mark pretty easily on the new BIOS means I am off to a good start right? Now to just get past 600 and maybe 7? If you think I should flash with a different BIOS please let me know as there were many to choose from and just chose the most recent. Thanks guys!

I'm sorry you're having such difficulty with these cards. I'd probably stick to 1500 mem as MSI Afterburner is showing me very little memory usage while scrypt mining, seems rather odd but I can live with that. I saw no hashrate difference when adjusting the mem except for the card crashing past 1800 mem so I left it at it's stock. It's certainly helped with keeping the silly VRM's temp down thats for sure... Give the beta2 drivers a shot they won't hurt the card might actually give you a small increase. Then again, it might not but it's nice to rule out that version nonetheless...

Just be sure to use the amd driver cleanup utility when changing drivers. You don't want any remnants of previous drivers screwing with your results, that and amd overdrive = off. Other than that I really don't know what else to say. This card is being stubborn  Cheesy

thanks for the advice! going to keep with 1500 mem as that seems to be pretty norm for everyone else are just start messing with engine more so. Tempted to go to 13.6 as your the only one to say good things so far..hmmm what windows are your running?
full member
Activity: 192
Merit: 100
Just an average guy with an average job!
I'm sorry you're having such difficulty with these cards. I'd probably stick to 1500 mem as MSI Afterburner is showing me very little memory usage while scrypt mining, seems rather odd but I can live with that. I saw no hashrate difference when adjusting the mem except for the card crashing past 1800 mem so I left it at it's stock. It's certainly helped with keeping the silly VRM's temp down thats for sure... Give the beta2 drivers a shot they won't hurt the card might actually give you a small increase. Then again, it might not but it's nice to rule out that version nonetheless...

Just be sure to use the amd driver cleanup utility when changing drivers. You don't want any remnants of previous drivers screwing with your results, that and amd overdrive = off. Other than that I really don't know what else to say. This card is being stubborn  Cheesy
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