how to fix problem on rx vega no power on

[techunlo]

i think that i have bad risers now i get 6 card rx vega 64 not working there is no led no fans and pc not detect

[Geraldo]

i think that i have bad risers now i get 6 card rx vega 64 not working there is no led no fans and pc not detect

Please be specific!
All of your cards undetected? It must be something wrong more than Risers. We need more info about your rig setup.

Board you are using: ?
PSUs, with power scheme if possible: ?
Operating Systems: ?

as detailed as possible that you can explain.

[techunlo]

i use asrock h110 with 2 psu 2x1000w ram ddr4 i got all gpu working after ther first launch of minning all lee stop working also fans not working and pc not detect all gpu

[Geraldo]

i use asrock h110 with 2 psu 2x1000w ram ddr4 i got all gpu working after ther first launch of minning all lee stop working also fans not working and pc not detect all gpu

Have you tried one only card plugged?
Did you find something strange on cards or PSUs, melted or whatever? Just for making sure no physical damage.

You can start with standard troubleshooting. Check all cards one by one (plug cards one by one to mobos).
And you can report all of the progress here. All members here would help you.

[CryptoPlay]

Youll need to provide more info to get help....

Do a fresh W10 install, without the cards....add the cards, all 6, later.