Hi All,

I tried yesterday to setup a mining rig with 2 x 5850, using ubuntu 11.04, got this weird issue. when I use only 1 gpu, I get 100% utilization, but when I try to use 2, each only runs at 50%. crossfire is disabled and I'm using phoenix:

aticonfig --odgc --adapter=all

Adapter 0 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 725 1000
Current Peak : 725 1000
Configurable Peak Range : [550-900] [900-1250]
GPU load : 49%

Adapter 1 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 725 1000
Current Peak : 725 1000
Configurable Peak Range : [550-900] [900-1250]
GPU load : 49%

aticonfig --odgc --adapter=all

Adapter 0 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 725 1000
Current Peak : 725 1000
Configurable Peak Range : [550-900] [900-1250]
GPU load : 97%

Adapter 1 - ATI Radeon HD 5800 Series
Core (MHz) Memory (MHz)
Current Clocks : 157 300
Current Peak : 725 1000
Configurable Peak Range : [550-900] [900-1250]
GPU load : 0%

Any ideas? Huh

Thanks!! :-)