hi i'm new in mining and have one question:

I have ASUS Z97-PRO  with gtx970 (one PSU 750W)

i plan to buy 4x RX580 and one psu 650W gold. its posible to connect to Z97-pro and mining ETH with only rx580s?, because i dont plan make new rig for mining, i need use my computer normaly with gtx970 with no freezes, Its posible?