Hi guys, my RX480 mining rig is having a problem here.
2 out of 6 GPUs hang after 5 mins of mining with Claymore miner, please refer to the screenshot below.
The rig is powered by 2 750w psu.
Ive tried reseating the risers and lowering the OC, but the result is the same.
Previosly the rig was running at a steady rate , after i relocated the rig, i have this problem.
Any advise is appreciated.

Two 750W power supplies should be enough to power your rig so we can, probably, rule out power problems (as a check use a
power monitor on each supply - just to be sure).
A couple of things you could try.
Run the rig with only each of the 'faulty' cards individually to check if there is a problem with the cards - disconect every thing but the card under test.
Strip the rig down completely (leave CPU place) and re-build it, it's the hardware equivalent of "Have you tried switching it of and on again?", you never know what may have been knocked out of place during the move.