[NEW] ethOS Mining with ASUS GeForce GTX 1070 low hash rate

Is my first time I build a rig. I have the full gpushack bundle

CPU with Heatsink/Fan
16GB ethOS Media Drive

PCI Risers and 5x ASUS GeForce GTX 1070

Now the problem is that my
1st GPU runs with 87 sol/s
2nd GPU runs with 106 sol/s
3th GPU runs with 363 sol/s
4th GPU runs with 385 sol/s
5th GPU runs with 0 sol/s

Any idea why is this happening?

what is your power supply?