A bit off-topic but avoid MSI like the plague and make sure your RX cards have Samsung RAM only, exchage any Hynix RAM cards before its too late! I'm going on 3 weeks now waiting on MSI for RMA. 100% defect rate on 7 of their cards, even the one armor card had fan barrings go after a week.
I have had more than a dozen MSI gaming X 470+480. Not a single one failed, all except two were Hynix.
On the other hand, out of a similar number of Sapphire Nitros, one failed (ball bearings, screeching sound and on another one fan was making noises, but card was working, so i just had it replaced).
Well I got a load of garbage cards from MSI, buyer beware. 32 bit mode got fried on two of the MSI cards while plugged directly into the pcie slot, so I know it's not the risers and other brands (gigabyte, sapphire & powercolor) all working fine.