Okay thanks. And what about the GPU.
Should I use 390 or the 390x? Msi or Sapphire? Or any other brand?
Are two 1000w PSU enough or one 1600W LEAP?
390 is better for Ethereum miniing than 390X. If you use 6 R9 390, you need at least 1500W PSU. It is cheaper to have two 1000W.