CGMiner 7950 StartMining.bat - What am I missing? Only getting 300KH/s scrypt

[stevenlam]

Anyone need help pm me the teamview ID.

[nightminer]

cgminer --scrypt -o http://yourpooladdresshere.com:PORT# -u Miner.X -p XXX -I 13 -g 1 --thread-concurrency 22400

Did you get high enough hash rates on -I 13? I have to run at -I 18 to get 450Kh on a 7950

[peonminer]

I think some cards are just not as good as others.

I have the Sapphire 3gb 7950 and the most I can get regularly is 560Kh/s at i-18. People always claim to get over 600 but I have yet to get over 600 using countless settings. I think it is a matter of silicon lottery.

With adequate cooling, i am able to achieve 715KH/s on the outside card.  The inside card is currently not on a riser, and doesn't have room to ventilate due to the card on the outer most 16x PCI-E slot. So I have it at -I 12 whilst the outer card is at -I 20. Both run flawlessly with out a single HW error. Thanks again for the tips everyone. Once I have all four cards mounted with risers/powered risers for both 16x, I will have each card running at 715KH/s+ for a total hashing power of  2,860KH/s.

No, my cards are not 7970s! They are 7950s. I have no idea why I'm able to achieve such an amazing hash rate. The only thing I can think would be the fact that I am using 12.8 AMD drivers and 2.7 SDK drivers.

[SoulSlayerPT]

I think some cards are just not as good as others.

I have the Sapphire 3gb 7950 and the most I can get regularly is 560Kh/s at i-18. People always claim to get over 600 but I have yet to get over 600 using countless settings. I think it is a matter of silicon lottery.

With adequate cooling, i am able to achieve 715KH/s on the outside card.  The inside card is currently not on a riser, and doesn't have room to ventilate due to the card on the outer most 16x PCI-E slot. So I have it at -I 12 whilst the outer card is at -I 20. Both run flawlessly with out a single HW error. Thanks again for the tips everyone. Once I have all four cards mounted with risers/powered risers for both 16x, I will have each card running at 715KH/s+ for a total hashing power of  2,860KH/s.

No, my cards are not 7970s! They are 7950s. I have no idea why I'm able to achieve such an amazing hash rate. The only thing I can think would be the fact that I am using 12.8 AMD drivers and 2.7 SDK drivers.

What is your cgminer settings for the 715KH/s card?

[peonminer]

I think some cards are just not as good as others.

I have the Sapphire 3gb 7950 and the most I can get regularly is 560Kh/s at i-18. People always claim to get over 600 but I have yet to get over 600 using countless settings. I think it is a matter of silicon lottery.

With adequate cooling, i am able to achieve 715KH/s on the outside card.  The inside card is currently not on a riser, and doesn't have room to ventilate due to the card on the outer most 16x PCI-E slot. So I have it at -I 12 whilst the outer card is at -I 20. Both run flawlessly with out a single HW error. Thanks again for the tips everyone. Once I have all four cards mounted with risers/powered risers for both 16x, I will have each card running at 715KH/s+ for a total hashing power of  2,860KH/s.

No, my cards are not 7970s! They are 7950s. I have no idea why I'm able to achieve such an amazing hash rate. The only thing I can think would be the fact that I am using 12.8 AMD drivers and 2.7 SDK drivers.

What is your cgminer settings for the 715KH/s card?

Delete all .bin files associated with preferred version of CGMiner. I chose 3.1.1 due to recommendation and most up to date version.

Clear CGMiner .bat file.

add

cgminer --scrypt -o http://yourpooladdresshere.com:PORT# -u Miner.X -p XXX -I 7

Results are a new .bin file. The number after TC was 22400.

New .bat file.

add

cgminer --scrypt -o http://yourpooladdresshere.com:PORT# -u Miner.X -p XXX -I 20 -g 1 --thread-concurrency 22400

should get a steady rate. This is what i'm pulling at the moment.

[bitterdog]

try this

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o http://binarycoins.eu:9333/ -u p -p 1 -I 13 --thread-concurrency 8192 --gpu-engine 1170 --gpu-memclock 1570 -w 256 -g 2 --lookup-gap 2 --expiry 5 --queue 0

[ohiwastedmylif]

Got mine up to 650-670 very stable.


color 40
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe -o --scrypt --auto-fan --temp-target 69 --gpu-engine 1125 --gpu-memclock 1600 --gpu-powertune 5 --intensity 20 -g 1 --thread-concurrency 21712 -w 256

[efx]

Although there are config variations due to bios, binning and PCB construction, these are pretty hard set rules with GCN:

 With 2 (or 4 ) threads, you cannot run above intensity 13 without hw errors. If you set very high thread concurrency (optimal value is definitely highly variable) with 2/4 threads and 13 intensity, you can sometimes get decent hashrates.

Alternatively, run a single thread at high aggression and tune the thread concurrency through experimentation. Start somewhere around 240000, move by multiples of 1024/512 etc until you hone in.  

[peonminer]

Although there are config variations due to bios, binning and PCB construction, these are pretty hard set rules with GCN:

 With 2 (or 4 ) threads, you cannot run above intensity 13 without hw errors. If you set very high thread concurrency (optimal value is definitely highly variable) with 2/4 threads and 13 intensity, you can sometimes get decent hashrates.

Alternatively, run a single thread at high aggression and tune the thread concurrency through experimentation. Start somewhere around 240000, move by multiples of 1024/512 etc until you hone in. 

240,000??

[zackclark70]

I think some cards are just not as good as others.

I have the Sapphire 3gb 7950 and the most I can get regularly is 560Kh/s at i-18. People always claim to get over 600 but I have yet to get over 600 using countless settings. I think it is a matter of silicon lottery.

1050 core 1250 ram 1.060v should get you 630+