Hey guys. I'm building a PC and was wondering about PSUs. I am building with a NZXT Phantom so I was thinking of getting a NZXT HALE90 V2. But I am curious on what version I should purchase. The 850W, the 1000W, or the 1200W.
-Intel DZ77GA-70K MoBo
-Intel Core i7 3770K with a CoolerMaster Hyper 212 EVO
-ASI GeForce GTX N770 Lightning witch I plan to SLI 2-way in the future.
-2 SSDs totaling about 300GB
-WD Caviar Black 2TB
-2 140MM fans, and 2 200MM fans.
I have absolutely no idea what kind of wattage I need and I could use some assistance.
For a system using two GeForce GTX 770 graphics cards in 2-way SLI mode NVIDIA specifies a minimum of a 850 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 62 Amps or greater and that has at least two 6-pin and two 8-pin PCI Express supplementary power connectors.
A reputable name brand 750 Watt PSU is sufficient if you're not planning on doing any overclocking of the CPU and/or GPUs. Choose an 850 Watt PSU if you are planning on overclocking.