Hi , i’ve a problem with my RX 5700 XT. I’ve mining rig with 3x RX 5700 XT ( 1 SAPPHIRE , 2x MSI) a just pust today 1 more card ( RX 580 4GB Sapphire) and i did flash the bios like i did in 3 previous cards 2 weeks ago. Then RX 580 and 1 RX 5700 XT sapphire stopped working, it says missing unit. I’ve tried changing RISER cables, psu, nothing works. Fans are spinning. Also i’ve tried to install the riser from working 5700 xt and its not working still but on msi card works. What should I do ?