R9 280x from Nonny12:
cgminer.exe --scrypt -o POOL-ADDRESS -u username -p password -v 1 -w 256 -I 13 -g 2 --lookup-gap 2 --gpu-powertune -20,-20 --gpu-fan 59,50 --temp-overheat 85,85 --temp-cutoff 90,90 --gpu-memclock 1500,1500 --gpu-engine 1000,1000 --thread-concurrency 8193
I have 4 card R9 280x, only 3 card run and 1 fail.
If I down --thread-concurrency 6000, them run but with big number HW.
Some one help!
Thanks.
my miner with 4 x 280x is running with moded 3.7.2 cgminer an the following config
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
--scrypt -o server -u user -p pw -v 1 -w 256 -I 13 -g 2 --lookup-gap 2 --gpu-powertune -20 --gpu-engine 1020 --gpu-memclock 1600 --thread-concurrency 8191
3 x 350 kh/s
1 x 230 kh/s (monitor conect on this device)
no rejects
hw errors 0.01% no problem i think
i'm using 4gb of mem if you have more u maybe need to tweak my settings
good luck
My system: Cpu: 3.0 Celeron, Ram 4G, 4xCard Asus R9 280x. I still have problem