Two GPU problem

Discussion created by shkurko_alexander on Jul 15, 2010
Latest reply on Jul 19, 2010 by psath

I'm using ASUS P5K motherboard with two PCIE slots (one PCIE  x16 and second PCIE x4). There are HD 5770 at first port and HD 5570 at second.

Unfortunately I can use only one GPU (HD 5770) from my OpenCL program.

What is the reason of such dehaviour?

Is it possible to use 2 GPU in such system?