PSU Custom Watercooling Loop

[Joshred52]

Alright i'm upgrading my system soon and i'm stuck on what kind of psu i should get i'm torn between the corsair ax1200i or ax860i now if i don't need to get the 1200w i would love to get the 860w but if i need to i'll get the 1200w here is my build please let me know what i should do

Corsair 900D ATX Full Tower
ASRock Z77 Extreme4 ATX LGA1155
Corsair Vengeance Pro 16GB (2 x 8GB) DDR3-1866
EVGA 04G-P4-3779-KR GeForce GTX 770 4GB 256-Bit GDDR5
EVGA 04G-P4-3779-KR GeForce GTX 770 4GB 256-Bit GDDR5
Alphacool NexXxoS Cool Answer 360mm
Alphacool NexXxoS ST30 Full Copper Slim Profile Single 120mm Radiator
Alphacool NexXxoS ST30 Full Copper Slim Profile Dual 120mm Radiator
Bitspower Water Tank Z-Multi 150 Inline Reservoir - Ice Red (BP-WTZM150P-IRDBK)
Corsair Air Series SP120 High Performance Edition (2-Pack) 62.7 CFM 120mm
Corsair Air Series SP120 High Performance Edition (2-Pack) 62.7 CFM 120mm
Corsair Air Series SP120 High Performance Edition (2-Pack) 62.7 CFM 120mm
Corsair Air Series SP120 High Performance Edition (2-Pack) 62.7 CFM 120mm

 

[4745454b]

And the CPU is? OCing anything? The 770 uses very little power for the performance. The cards together should draw less then 450W. Even if you had an FX CPU drawing 125W (which you can't because you have an Intel board.) you are looking at less then 600w. The 860i will be fine.

 

[Joshred52]

Intel Core i5-3570K so the 860i can support my own system ?

 

[Joshred52]

And yes i'm planning to oc

 

[4745454b]

OCing is hard as each part is different so you won't know what the draw will be. On the worst case, each card being 300W, and 200W for the CPU and you are now at 800W. I doubt you can OC the 3570K to hit 200W. But 175W is possible. Rest of system shouldn't change much, but you'd be very close to the 860i's limit. A mild OC on parts will fit ok, as will only OCing the GPUs and leaving the CPU at stock. If you want high clocks on everything, something higher then the 860i would be in order.

 

[Joshred52]

i'ma have to go with the 1200w because i'm planning to oc everything for top performance