Error on default settings:
21:02:32:037 1310 GPU 4, GpuMiner dk1a failed -4
21:02:32:076 ce4 GPU 1, GpuMiner dk2a failed -4
21:02:32:113 a20 GPU 0, GpuMiner dk2a failed -4
21:02:32:148 126c GPU 4, GpuMiner dk2an0 failed -4
21:02:32:220 14e0 GPU 4, GpuMiner dk2an0 failed -4
21:02:32:255 127c GPU 1, GpuMiner dk2an0 failed -4
21:02:32:305 c7c GPU 0, GpuMiner dk2an0 failed -4
21:02:32:342 137c GPU 1, GpuMiner dk2an0 failed -4
21:02:32:385 1330 GPU 3, GpuMiner dk2a failed -4
21:02:32:393 1758 GPU 0, GpuMiner dk2an0 failed -4
21:02:32:409 fcc GPU 4, GpuMiner dk2an0 failed -4
21:02:32:420 1450 GPU 1, GpuMiner dk2an0 failed -4
21:02:32:436 15f4 GPU 0, GpuMiner dk2an0 failed -4
21:02:32:510 20 GPU 3, GpuMiner dk2an0 failed -4
21:02:32:539 10e0 GPU 3, GpuMiner dk2an0 failed -4
21:02:32:560 1798 GPU 3, GpuMiner dk2an0 failed -4
5x RX 480 8G
Version 9.7 work fine
make sure to have this line GPU_FORCE_64BIT_PTR 1 and virtual memory set to 16gb or managed by windows.It helped me i was getting the same error.
But i have a problem hash rate is 365 on RX480 8gb and with 9.7 it was 680.
I have 16 r9380 4gb and hash rate is 678 so it is working fine on those.
I solve the problem. Try -h 1024 and all work fine