I have a machine with 2x5970 cards .
I'm using LinuxCoin and phoenix miner with deepbit pool.
I run 4 pheonix miners using the following command:
./phoenix.py -u http://user:firstname.lastname@example.org:8332/
-q 6 -k poclbm VECTORS BFI_INT AGGRESSION=12 WORKSIZE=128 DEVICE=0
With DEVICE going from 0 to 3
When I only run devices 1,2 and 3, each run on 305 MHash/s
When I add device 0, It runs on 305 MHash/s but the rest drop to somewhere between 220 and 290
I've increased the fan speed to 70%, and the temperatures seem fine (less than 76 Celsius).
I've used aticonfig --lscs and saw that Crossfire seems to be disabled.
Do you know why I can't get all devices to run on 305 MHashs/s ?