Open loop watercooling

[John Hagan]

I have been looking into building a custom loop for probably about a year now. I've been researching the components, what they do, the risks involved, precautions to take, etc. I have made the decision to finally take the step forward into the realm of custom water loops. However, I have a few questions that I can't seem to find a definite answer on, and figured I would ask the guys with all the knowledge. My specs are as follows:

Corsair 600T Case
Sabertooth Z77 Mobo
i7-3770K OC @ 4.5GHz
Corsair H100i (push/pull)
16GB Corsair Dominator @ 1800MHz
256GB Samsung 840 Pro SSD
3TB WD HDD
2x EVGA GTX 780 (reference, no OC, configured in SLI)
Corsair HX1050 PSU

My first question is what size rad would I need to adequately cool down the CPU and both GPUs? I currently have my case modded to fit the H100i in push/pull, and I do have enough room to make some more cuts and fit a 360mm rad. I just don't know how well it will cool down the components.

My second and final question, is my PSU enough to power these components?

Thank you in advance.

 

[manofchalk]

Size of the rad, I would be looking at dual 360mm's or equivalent for that loop. Your going to need more than a single rad unless its a particularly thick 480mm I bet. You could externally mount a radiator, or pull out the drive cage to fit a thick 240mm on the front panel.

PSU is more than enough.

 

[schmuckley]

What you described is closed-loop..
This is open-loop: http://www.overclock.net/t/406256/the-official-bong-lovers-club-56k-fail/0_100
Open loop is more effective..but requires more periodic maintenance.