2 GPU, only one is working !

GodmasterGodmaster Member Posts: 183
Hello guys I have a problem.
I have 2 Msi R9390 X the first one is plug on a riser usb3.0 and the second one is on the pci-16x port.
Windows has detect the 2 cards. but when i run ethminer only 1 card is working, the card who is on pci-E 16x, the card on usb riser doesnt work, I have a display port cable plug on the card plug in usb3.0 and my TV everything going well.

I have run :
ethminer.exe --farm-recheck 400 -G -F --opencl-platform 1 --opencl-device 0 --cl-local-work 256 --cl-global-work 16384

I have also try 1 card alone with the riser usb on the first pci1x=> the GPU works
I try -t 2 with 2 cards, only 1 card works

Can i have one card on a usb 3.0 riser and 1 on pci-e with ethminer ? what can be the problem ?

Thanks for your help !


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