So, I’ve decided to take on my first custom watercooling build to go with my upcoming IB-e upgrade. I’ve done quite a bit of research and formulated an initial build and setup plan, and am now at the point that I want to run it by the experts here and solicit feedback & advice.
To start off with, here’s a VERY rough diagram of what I expect my build to look like (please forgive my horrendous artwork, but you get the idea):

My planned loop is: pump > res > cpu > rad > gpu > gpu > rad > pump. I would like to be able to mount the pump directly under the reservoir, allowing me to make that last connection shorter and more direct, but I need to see the case first to figure out if that’s possible. Where I have the pump in the diagram (bottom right corner) is the designated default pump mount.
I’m still working out how many additional fittings (i.e. 45 degree, 90 degree, etc) I’ll need.
Now, a few notes on the less obvious choices I’ve made:
One thing that concerns me about this build is fan noise. I’ve never been one to be concerned about fan noise, but I’ve also never planned a build with 15 fans before. lol I’m concerned that 12 Corsair high-flow fans at full speed could sound like a freight train, so I’ve made some compromises. I figure with 2 large radiators + 12 fans, I can afford to dial back the rpms & airflow just a bit in favor of less noise (Swiftech, on top) and aesthetics (the red Phobya, on bottom).
For the top radiator, I went with the XSPC low profile 36mm radiator because I have exactly 70mm clearance between the top of the case and the top of the mobo. To compensate for the slim form factor, I decided to go with the (3x)140mm model. This will allow me to have the top radiator in push-pull config while not conflicting with the NB heatsink or ram. I could, of course, have gone with a thicker radiator (up to 70mm) and just one set of fans, but I think it’s more effective to go with the thinner radiator w/ push-pull since the top will also serve as the main air exhaust – I want to make sure I don’t get warm air building up inside the case faster than it can be exhausted out the top.
I have made a conscious effort to keep all components in the system pure COPPER/BRASS, no nickel; and I do not plan on any additives to my H2O (besides the silver killcoil). My understanding is that this should keep my system from reacting with itself and keep my components clean and operational with minimal maintenance (clean/flush once a year or so).
I'm not thrilled with the the idea of using cold cathodes for lighting, but I don't think I've ever seen a UV LED (?). I could just go with red LEDs, which is what I have in my current build, but I rather like the idea of highlighting the tubing with UV light.
I considered going with universal gpu blocks instead of full coverage, but I intend to overclock the crap out of my graphics cards once I get them under water, and I'm not sure how the voltage regulators would do with passive cooling. I'd love to hear insight on universal vs full coverage gpu blocks. If I could go with universal blocks it would save me a lot of money down the road when I decide to upgrade my graphics cards, but I don't want to go that route at the expense of overheating VRMs.
Finally, the Enthoo Primo chassis won’t be available for purchase until mid-October, so I have a few more weeks of planning to do before I can get my hands on it, but that just gives me plenty of time to be meticulous about planning.
I think that about covers it. Any & all feedback, advice, or insight is welcome and appreciated.
Thanks!
🙂
Asus RIVBE • i7 4930K @ 4.7ghz • 8gb Corsair Dominator Platinum 2133 CL8
2xSLI EVGA GTX 770 SC • Creative X-Fi Titanium • 2x 840 SSD + 1TB Seagate Hybrid
EVGA Supernova 1300W• Asus VG278H & nVidia 3d Vision
Phanteks Enthoo Primo w/ custom watercooling:
XSPC Raystorm (cpu & gpu), XSPC Photon 170, Swiftech D5 vario
Alphacool Monsta 360mm +6x NB e-loop, XT45 360mm +6x Corsair SP120