Hi guys

BIIIIIIIIIG problem here
Anyone solved that?

- 13 RX580 8GB XFX on B250 MBO
- last bios updated for MBO
- original BIOS for GPS's
- Using simplemining OS
- no overclock for GPu's

AWFUL RESULTS:
ETH - Total Speed: 14.022 Mh/s, Total Shares: 3, Rejected: 0, Time: 00:22
ETH: GPU0 0.876 Mh/s, GPU1 1.317 Mh/s, GPU2 1.642 Mh/s, GPU3 1.642 Mh/s, GPU4 0.657 Mh/s, GPU5 1.317 Mh/s, GPU6 0.000 Mh/s, GPU7
2.629 Mh/s, GPU8 0.876 Mh/s, GPU9 1.317 Mh/s, GPU10 0.000 Mh/s, GPU11 0.875 Mh/s, GPU12 0.876 Mh/s

Same awful results on any scrypt.
I have tried one full day to mix power suply, risers, all !!!
Any idea?