Above has been working fine for days along with 3x RX 480 running at stock settings. Since I no longer game the CPU is massive overkill so I traded it for a EVGA 1600w PSU. Yesterday my Intel Celeron G3900 came in and as usual I had it swapped in minutes. But the rig is very unstable now. With all 4 GPU's connected it would hard reset within a minute of starting with dual mining. With 3 GPU's connected all lasts longer but it still crashes way too often. The idea was to swap to a celeron because it uses less power and I would make profit getting the PSU out of it, but what is happening now makes no sense to me. Anyone has any clue how that is remotely possible?
I managed to fix the problem my re-flashing the mobo (with same version) with the new CPU in it. I guess during the flashing everything calibrated again and now it is running stable again for the past 12 hours.
Based on reactions on this forum about 570's/580;s I am about to order
https://www.newegg.com/global/nl/Product/Product.aspx?Item=N82E16814131714&ignorebbr=1 x 5 (5 is the order limit

). Reason I am leaning towards this card is that it has limited OC functions (for now) but it runs with 27.8mhs / 800 mhs stable for dual mining based on stock settings. Sounds great for a new rig. That way it seems like I have decent stock results so I focus on learning other stuff first.
Fairly exciting. Never ordered anything from USA before.