hello crew new to eth, i will to ask if it is possible to run 2 amd cards a 7950 and 7850 in the same rig, windows 8.1 64bit, the switches that i have read here for specifying add'l cards don't seem to work it starts to mine and stops, also i can mine with the single cards in position 0 of the mb works great but when i install the second card in position 1 it assigns itself position 0, here is my cmds i have tried,
1)single card, "ethminer.exe --farm-recheck 200 -G -F
http://127.0.0.1:8332/username.workername:password --cl-global-work 8192 --cl-local-work 128: on the single 7950this works great, 20+ MHs/s
2)2cards, "ethminer.exe --farm-recheck 200 G -F http;//127.0.0.1:8332/username.workername:password opencl-device 0,1 --cl-global-work 8192 --cl-local-128" with settings it will start to hash until the second or third "got work" then it halts and the curser blinks,also i checked the status on the amd settings and it shows that the 7950 card is operating at 99% the 7850 is at idle.
3)2cards, "ethminer.exe --farm-recheck 200 -G -F
http://127.0.0.1:8332/username.workername:password" it will ether loading dag or start hashing until the second or third "got work package" and it halts.
thanks in advance
Yeah, stop using Windows:)
Here is an example "hillbilly winders" startup bat file:
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
setx GPU_MAX_ALLOC_PERCENT 100
cd C:\Users\dave\Desktop\ethminer-0.9.41-genoil-1.0.5
ethminer -G -R . --farm-recheck 400 --cl-local-work 128 --cl-global-work 8192 -F
http://ethereum.usa.nicehash.com:3500/n1c3-1HtkaiWKeKZ6MJgag6a3fUQo3BxcT2gAKv.nvda/20There are a lot of things to check.
8GB of RAM is a good idea.
Make sure you have available disk space - DAG files are ~3GB in total.
Make sure your are using the latest AMD drivers - Crimson has been working well for most.
Take all that malware off your "Winders" box too - strip it BARE, or even do a clean install of a 64bit OS.