Quote from: samurai1907 on May 29, 2019, 10:34:39 PM

can i get some help here?

i have some rx 570 4gb cards, when i try them alone i get hashrates but when i add them in 6 or 7 cards rigs, they locked whole system, whatever i do they dont work, what it could be a problem?

Welcome to the forum, mate! You can always get some nice help here. However, most of such issues (like yours) have been discussed here in the past in detail, so I think it'd be better if you first search for them in this (altcoins mining) section.

These two threads might be able to help you too:

https://bitcointalk.org/index.php?topic=1009890.0
https://bitcointalk.org/index.php?topic=1952805.0

Moreover, if these two threads fail to help you and you don't find any suitable thread, I'd recommend you to post more details of your issue. Are you facing that problem with even 2, 3, or 4 graphics cards (when you put them at once)?