I'm thinking of adding a second Sapphire R9 390 to my computer to run in 2x crossfire.Here are the parts I'm using:CPU: Intel i5-6600kMB: Asus Z170-A ATX LGA1151RAM: Kingston HyperX Fury Black 16GB (2x8GB) DDR4-2133Storage: Samsung 850 EVO-Series 250GB SSD and Seagate Barracuda 2TB3.5 7200RPMCase: Corsair 200R ATX Mid TowerGPU:   Sapphire Radeon R9 390 8GB Nitro PSU: EVGA SuperNOVA GS 650W 80+ GoldThe power requirements of such an upgrade would technically be covered by my current PSU, but only by a very small margin.Also, my PSU only provides enough cables for a single GPU.The theoretical power draw is around 750W so I'm looking for something in the waters of 800-900WFully modular and silent operation on idle are both big pluses.High reliability is a must!What would be a good model to solve this problem?
Power supply upgrade for gaming computer
gaming;graphics cards;power supply
If you are looking for the best choice for paid money I would recommend:EVGA SuperNOVA 850 P2 - $160 on newegg.comDescription:This PSU has Platinum certificate and it was made on Super Flower platform so it guarantees high quality of components. It is passive until load around 340W. It has avarage efficiency on low loads around 84.2 % and on normal loads avarage efficiency is 92.5%. EVGA also comes with 10 years warranty what is really good offer.Most important features:80 Plus Platinum certifiedsemi-passive - quiet until ~340W loadreally good efficiency results on low and normal loads10 years warrantyfully modularFinal conclusion:It is really good PSU made on components from SuperFlower. If you are looking for best efficiency for spend dollar you should think about this PSU. It will work good with your setup and stay quiet when PC is idle or it is under small load. If it's not enough for you should think about Titanium EVGA PSU which I described in my other answer.