thanx everybody,also what do you think about pci risers vs usb risers?
with new gpu you need don't cumbersome risers, they consume very little, so standard ribborn riser is good enough
i have currently one rig full of 1070 with standard risers, no issue so far, no crash, very stable, i'm loving it, the only problem is that i bought a 1000w and it's not perfectly fine with 6x1070, better to go with a 1200 corsair or 1300 evga....