Hi, i bought a powercolor RX 480 8GB (reference model), it has samsung memory luckily. I put the same straps that i have on my Sapphire nitro+ rx480 8gb (samsung too), and reboot.
The straps are:
777000000000000022CC1C00CEE55C46C0590E1532CD66090060070014051420FA8900A00300000 012123442C3353C19

When i start mining after the pc is turned on the powercolor start getting millons of memory errors and after 10seconds i get a black screen(for 1 sec) and after that wattman settings are restored to default (It was on default settings before). Now i open the miner again and i get 0 errors and is hashing at 31.8MHs (overclocked), but every time i reboot the pc it happens the same, it's very weird.

So i set another straps that get me 1.2MHs less but it doesnt happen that weird thing the first time i open the miner.

Also i tried restarting wattman settings before start mining after a reboot but it's exactly the same.

Someone have any idea what is happening?

Thanks in advance!