Hiya fellow miners, coming to you because i experienced a difficulty. Have already 6 gpu 1070 GTX running smoothly on win10, on my MB there is only 6 slots pcie (Asrock H81 pro btc R.20). Have bought an expansion hib riser, this one https://www.amazon.fr/gp/product/B0756HM18N/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1  to install 7 gpu.

So i installed it, plugged one riser on it (one of the 6 already working not the new one) and nothing happen, have now 5 gpu recognized on my win10. Look like this expansion doesnt working or there is something i have to change on bios?

Already have gen1 tryed with gen2 same thing. Tryed to plug the expansion on another pcie slot, nothing happen. Have already check all forums, and didnt see any tips for this kind of problem. If someone have the solution or an idea, i'll take it !

thx