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[Guide] NVIDIA & AMD PTS GPU Mining - Page 573

post #5721 of 6478
I desperately need to undervolt all my cards. After using Stilt's bios on my 290x's they are using more juice. I'm pulling near 1400W from the wall with my setup, 2 290x's, 1 270x, 2 270's. Thing is MSI AB turns to crap when it has a mixed set of a cards hence I don't even use it.
post #5722 of 6478
Quote:
Originally Posted by Hukkel View Post

To undervolt them you would need to flash the bios correct?
I mean I cannot see the voltage in MSI Afterburner

Do you have the latest Beta of AB? If not download that and make sure to check unlock voltage control in the settings tab
     
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post #5723 of 6478
Quote:
Originally Posted by Outlawed View Post

Wish it were possible in linux buddy, really do. :/

The only way I've found is a very sketchy looking process HERE and it doesn't even seem to incorporate any r9 series cards.

Quote:
Originally Posted by Hukkel View Post

To undervolt them you would need to flash the bios correct?
I mean I cannot see the voltage in MSI Afterburner

Quote:
Originally Posted by battleaxe View Post

Do you have the latest Beta of AB? If not download that and make sure to check unlock voltage control in the settings tab

I prefer bios flashing...even for normal usage. More convenient than using the buggy as heck AB.

You need atiwinflash, gpu-z to extract the original bios and then modify it with VBE if using R9 or R7 series cards.

290 and 290x won't work AFAIK, you'd need Stilt's lower voltage bioses but they might not work, hence why I don't consider 290s to be good mining cards for the more professional miner/farmer.
post #5724 of 6478
Quote:
Originally Posted by ivanlabrie View Post



I prefer bios flashing...even for normal usage. More convenient than using the buggy as heck AB.

You need atiwinflash, gpu-z to extract the original bios and then modify it with VBE if using R9 or R7 series cards.

290 and 290x won't work AFAIK, you'd need Stilt's lower voltage bioses but they might not work, hence why I don't consider 290s to be good mining cards for the more professional miner/farmer.

Strange... I've never had a single issue with AB, maybe I got lucky
     
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post #5725 of 6478
I'm checking out yacoin and vertcoin on my 670s and will see how they go then decide. Is a multipool (clevermining etc..) a viable option for nvidia GPUs using cudaminer? I'm not worried about rolling in the BTC.

This is my setting for yacoin after a quick autotune with cudaminer. My 2nd 670 isn't tuned in quite as nicely as the one in the photo yet. They both have a custom BIOS.

BAT file:
cudaminer -s 10 --algo=scrypt-jane -d 0,1 -L 2 -l k64x2,k20x6 -b 4096,4096 -i 0 -C 2 -o stratum+tcp://yac.coinmine.pl:9088 -O Username.Minername:Password


Edited by Ryld Baenre - 3/5/14 at 9:52am
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post #5726 of 6478
Quote:
Originally Posted by Ryld Baenre View Post

I'm checking out yacoin and vertcoin on my 670s and will see how they go then decide. Is a multipool (clevermining etc..) a viable option for nvidia GPUs using cudaminer? I'm not worried about rolling in the BTC.

This is my setting for yacoin after a quick autotune with cudaminer. My 2nd 670 isn't tuned in quite as nicely as the one in the photo yet. They both have a custom BIOS.

BAT file:
cudaminer -s 10 --algo=scrypt-jane -d 0,1 -L 2 -l k64x2,k20x6 -b 4096,4096 -i 0 -C 2 -o stratum+tcp://yac.coinmine.pl:9088 -O Username.Minername:Password


Very nice...my 780 did close to 6kh/s but that's very good for a 670.

See profitability calc here: http://explorer.yacoin.org/static/calc.htm

Yac will be like 30% better than LTC and surely better than multipools most of the time, whilst drawing less power on your card.
post #5727 of 6478
do you know if the -s 10 flag is needed or if there are any more improvements I could make to the batch file to quicken things up off hand? I'll be doing some trial and error over the next few days. I just put the pounds sign in front of the no good lines.
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post #5728 of 6478
Quote:
Originally Posted by kskwerl View Post

I just wanted to quickly comment on the ASrock Pro BTC boards for anyone thinking of buying them, they are pretty low quality and a giant PITA I would stay away from them. I have three of them and googling will show you many people have issues with these boards.

Really? I bought one a few weeks ago, and outside of the Win8 limitation of 5 cards (which I got around with that modified driver) it's been running merrily along since I took it out of the box. I'm using six 270Xs with powered risers on it. I have two 4-pin MOLEX connectors hooked to the board to help with power supply to the PCIe slots, too. Using two eVGA 750W Bronze PSUs.... I haven't had a single issue with the BIOS, PCIe slots, CPU, etc. Perhaps bad QC at ASROCK?

I actually picked up 3 more from Microcenter last time I was there because they were on sale (~$57 each after taxes) just in case I decide to do a few more rigs with 280Xs biggrin.gif
post #5729 of 6478
Careful. Many reports of using the onboard molex power and powered risers can fry cards.
Quote:
Originally Posted by derpa View Post

Quote:
Originally Posted by kskwerl View Post

I just wanted to quickly comment on the ASrock Pro BTC boards for anyone thinking of buying them, they are pretty low quality and a giant PITA I would stay away from them. I have three of them and googling will show you many people have issues with these boards.

Really? I bought one a few weeks ago, and outside of the Win8 limitation of 5 cards (which I got around with that modified driver) it's been running merrily along since I took it out of the box. I'm using six 270Xs with powered risers on it. I have two 4-pin MOLEX connectors hooked to the board to help with power supply to the PCIe slots, too. Using two eVGA 750W Bronze PSUs.... I haven't had a single issue with the BIOS, PCIe slots, CPU, etc. Perhaps bad QC at ASROCK?

I actually picked up 3 more from Microcenter last time I was there because they were on sale (~$57 each after taxes) just in case I decide to do a few more rigs with 280Xs biggrin.gif
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post #5730 of 6478
so, what is the best thing to mine on nvidia GPUs now?
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