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Help with a config?

C

cubsfan-budman

Limp Gawd
Joined
Jul 29, 2013
Messages
172
Hey gang, here's my config...any suggestions to squeeze a bit more juice out of my cards (Sapphire Dual-X R9 270x)? I'm ping ponging back and forth from about 450-430KH/s right now...I've read that I might be able to get 20 or so more...any suggestions appreciated!

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://uswest.wafflepool.com:3333 -u durdeedurr -p d=512 --thread-concurrency 12992 --auto-fan --gpu-fan 40-85 --temp-target 70 --temp-overheat 90 --temp-cutoff 95 --lookup-gap 0 --gpu-engine 1130 --gpu-memclock 1500 --gpu-powertune 20 --shaders 1280 -w 256 -I 19 -g 1 --no-submit-stale
 
This isn't going to help your KH/s but on Wafflepool, remove the "--no-submit-stale". Apparently it's not good to use with Wafflepool. Can't remember where I read that or I'd be able to give you a better explanation as to why.
 
Carbon_Rod said:
This isn't going to help your KH/s but on Wafflepool, remove the "--no-submit-stale". Apparently it's not good to use with Wafflepool. Can't remember where I read that or I'd be able to give you a better explanation as to why.
Click to expand...

Because "stale shares" could still be valid on coin switches.
 
Just FYI to other noobs like me...boosted thread count to 16000 and temp target to 82. This helped a lot.
 
cubsfan-budman said:
Just FYI to other noobs like me...boosted thread count to 16000 and temp target to 82. This helped a lot.
Click to expand...

Better would be 15360 or 16640. Usually the best TC on the R9 series is shaders * n or (shaders * n) + 1 depending on which scrypt kernel you are using. Best TC on my g2, xI 4, zuikkis kernel setup was 5121 for a 270.
 
Several of my 270 cards really like either 10241 or 15232 TC. 19 Intensity for all though...
 
cubsfan-budman said:
Hey gang, here's my config...any suggestions to squeeze a bit more juice out of my cards (Sapphire Dual-X R9 270x)? I'm ping ponging back and forth from about 450-430KH/s right now...I've read that I might be able to get 20 or so more...any suggestions appreciated!

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://uswest.wafflepool.com:3333 -u durdeedurr -p d=512 --thread-concurrency 12992 --auto-fan --gpu-fan 40-85 --temp-target 70 --temp-overheat 90 --temp-cutoff 95 --lookup-gap 0 --gpu-engine 1130 --gpu-memclock 1500 --gpu-powertune 20 --shaders 1280 -w 256 -I 19 -g 1 --no-submit-stale
Click to expand...

Remove --lookup-gap 0, and the --shaders flag.

--Shaders gets overwritten by --Thread-concurrency when specified.
 
If you're willing to give sgminer a try, I'm betting this config will easily get you to 490+ at those speeds. Plus, the PC will be more responsive than -I 19.

-w 256
-g 2
-X 4
--thread-concurrency 8193
--lookup-gap 2
--gpu-powertune 20
--gpu-engine 1130
--gpu-memclock 1500

Will your card not do 1150 core? I've got one of the same card and it'll do 1150 core with the voltage reduced to 1.136V.

Have you flashed the BIOS to turn down the voltage? 270Xs are running notoriously high voltage (1.2V+) for mining. My Sapphire 270X came stock at 1.238V.
 
Not all of my 270s will do 1100 core at 1.138v or lower. One struggles at 1100 even at stock volts of 1.188.
 
I forgot to mention your mem clock will depend on the type of RAM your cards have. Hynix can sit at 1250 and run just as fast as it would at the stock 1400 or even 1500. Elpida RAM needs to be at 1500 just like the situation with the 290s.
 
Parja said:
If you're willing to give sgminer a try, I'm betting this config will easily get you to 490+ at those speeds. Plus, the PC will be more responsive than -I 19.

-w 256
-g 2
-X 4
--thread-concurrency 8193
--lookup-gap 2
--gpu-powertune 20
--gpu-engine 1130
--gpu-memclock 1500

Will your card not do 1150 core? I've got one of the same card and it'll do 1150 core with the voltage reduced to 1.136V.

Have you flashed the BIOS to turn down the voltage? 270Xs are running notoriously high voltage (1.2V+) for mining. My Sapphire 270X came stock at 1.238V.
Click to expand...

according to the site i checked, i have the latest ATI BIOS .041 or something similar.

i have Trixx installed...should i turn the voltage down? my voltage is near what your stock 270x is at 1.2v+
 
edge929 said:
I forgot to mention your mem clock will depend on the type of RAM your cards have. Hynix can sit at 1250 and run just as fast as it would at the stock 1400 or even 1500. Elpida RAM needs to be at 1500 just like the situation with the 290s.
Click to expand...

Even with Elpida, my cards will do 490 at 1150/1250 with the config I posted.
 
Go into your cgminer folder and delete all the scriptxxxxxxx.bin files. Start cgminer with just your user name/pass. It'll create another one of those scriptxxxxxxx.bin files and somewhere in that file name you'll see tcxxxxx. (Xxxxx being a number). That's what cgminer thinks your tc should be. Plug that into your original config and then bump it up by 128 until you start getting hw errors. Then back to the highest tc you can use with out hw errors. That's what you need to use for tc.

Btw, this is how I've tweaked all my cards, not just 270s.
 
SrSDsuT.png
 
Bonksnp said:
Go into your cgminer folder and delete all the scriptxxxxxxx.bin files. Start cgminer with just your user name/pass. It'll create another one of those scriptxxxxxxx.bin files and somewhere in that file name you'll see tcxxxxx. (Xxxxx being a number). That's what cgminer thinks your tc should be. Plug that into your original config and then bump it up by 128 until you start getting hw errors. Then back to the highest tc you can use with out hw errors. That's what you need to use for tc.

Btw, this is how I've tweaked all my cards, not just 270s.
Click to expand...

this is good advice...i found what "should" be an optimal TC this way, i hope.

16256

thanks for the advice, Banksnp and everyone else!
 
here's my current config:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://uswest.wafflepool.com:3333 -u durrdeedurr -p d=512 -I 19,19 --auto-fan --temp-target 85 --temp-overheat 90 --thread-concurrency 16256 --gpu-engine 1150 --gpu-memclock 1500 --gpu-powertune 20

unfortunately, im only getting ~800kH/s for the 2 270x that i have currently installed (have 4 more i'm going to bring online soon)

any additional tweaks?
 
lol, starting to get annoyed...NOTHING that i do seems to change the hashrate up or down...

stuck at 415 on one 385 on the other.

went back to the orig config and this is as good as it gets.

probably going to try sgminer next.
 
cubsfan-budman said:
here's my current config:

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -o stratum+tcp://uswest.wafflepool.com:3333 -u durrdeedurr -p d=512 -I 19,19 --auto-fan --temp-target 85 --temp-overheat 90 --thread-concurrency 16256 --gpu-engine 1150 --gpu-memclock 1500 --gpu-powertune 20

unfortunately, im only getting ~800kH/s for the 2 270x that i have currently installed (have 4 more i'm going to bring online soon)

any additional tweaks?
Click to expand...

Try adding -w 256 -g 1.
 
Bring your engine down to 1100 (or even 1050) and start increasing it in increments of 10. You should see it steadily rise and then fall dramatically. I'm guessing you should be somewhere around 1120 - 1140
 
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