Post
Topic
Board Mining (Altcoins)
Re: Ethereum mining still profitable?
by
CryptoSalad
on 21/05/2016, 23:32:54 UTC
What sized power supply will i need for a system with 3x R9 390 Video Cards?  How about 4x - I have the cards just want to make sure i buy the right power supply



If you under volt the R9 390 by -100mV, it will consume about 220-240W each, so for 4x390, 1250W is more than enough.

 How do you go about under volt cards? Can you do this though MSI afterburner, or do you need to use some custom Bios update for cards?