Quote from: tabjohn on January 28, 2014, 11:07:40 AM

Quote from: jacoksonl on January 28, 2014, 10:55:59 AM

Quote from: tabjohn on January 28, 2014, 09:51:03 AM

Quote from: Gaukler on January 28, 2014, 09:25:13 AM

Quote from: amerikos on January 28, 2014, 09:14:26 AM

Quote from: Gaukler on January 28, 2014, 08:50:02 AM

Quote from: littlemc on January 28, 2014, 08:26:41 AM

Quote from: amerikos on January 28, 2014, 08:24:39 AM

Quote from: littlemc on January 28, 2014, 08:20:14 AM

Quote from: amerikos on January 28, 2014, 08:19:00 AM

Quote from: poolers on January 28, 2014, 05:18:50 AM

What are you hashing at, about 2-ish mh/s ?

yea between 2 cpus and 5 6950s i get about 2200-2300 at max

not bad
getting about 1200 with 2x 7950

oh rly? i thought they were supposed to get 700-750 each?

im not sure, i guess maybe with the right tweaks & overclocking etc..
on a side note, seems like the low diff days are about to over Sad

I also have a 7950 and can get only 640. So i try'd many different settings, but card crash every time

It took me a while to figure out the setting for my 6950s, but after i got the hang of cgminer and the proper thread concurrency, i was able to run them at intensity of 19/20 putting out hash rates of 440-450 per card. i did also overclock them from 800 to 900. they've been running well for almost 2 months now. and considering that powercolor isnt exactly the best brand, im pretty happy with them so far. once in a great while one of the cards does go dead in cgminer, but i just restart the program and everything is fine once again. once i make enough profit i want to invest in another 2 rigs with 3 or 4 r9 280xs/ rig. im hoping batcoin will get this done for me. time will tell.

At the moment, i run my card with this configuration:
--thread-concurrency 22400 --intensity 19 --gpu-engine 1080 --gpu-memclock 1590 --auto-fan --gpu-powertune -10 -w 256 -g 1

But one question, what is more important to tune , engine oder memclock ?
Maybe send me a pm, don't want that this thread goes to a "how to configure my card" thread.

thanks

Try set thread-concurrency 8192, intensity 13, g 2 and underclock gpu engine... let say 1040-1060. I dont know if it gonna help. I got R9 280x so I think that it is really close to 7950. This is my best config, I have 730kh/s per one R9 280x. In my case it was VERY important to underclock gpu-engine. Default for my card was 1100 and on this i got 550kh/s. After propper undeclocking gpu-engine I have my config

sounds good. 730k on the 280X?

Yeap, but I spent some time to figure this out. That is whatI was saying, the key is propper underclocking gpu-engine. Memory-clock should be as high as possible. After propper config I also did undervolting the cards. Sinse I had Gigabyte versions (the only one that can't be undervolt by software) I had to upload a new bios, but I work perfect. After undervolting one card had about 50W power consumption. So for the rig with 3x R9 280x it was 150W less!

Idk about that. I think with the 69xx and 79xx series cards the core clock is what matters, not the mem. And on the new r9 series its the opposite.