Quote from: wolverine31634 on July 01, 2017, 04:45:36 AM

Thank for the reply.

Yes six risers. All powered by by main PSU. Risers attached to motherboard thorough 1x PCIE which came along with the riser. its the blue USB cable connecting. Connections are okay because 3 are working and hashing.

Hi,

The riser of each card needs to be powered with the same PSU as the card.
example:

PSU1: motherboards, CPU, HDD, risers 1,2,3 and the GPUs 1,2,3 (sitting on risers 1,2,3)
PSU2: risers 4,5,6 and GPU's 4,5,6 (connected to risers 4,5,6)

DO NOT mix risers and GPU's on different PSUs!

Also if you are powering up the 2nd PSU manually, make sure it is powered up 1st! and then power the motherboard!