Quad GPU Waterblock Connector (EKWB)

thingiverse

I designed this custom water cooling system to connect 4x EKWB water blocks for efficiently cooling two MSI GTX 970 4GD5 OC graphics cards and two Asus GTX 970 Strix graphics cards in a single, powerful loop. I invested an excessive amount of time in this project, which ultimately led me to abandon it due to frustration. I spent around five or six hours meticulously cleaning out the support system, only to spend another two or three hours cursing at the o-rings, trying to get them to work properly. However, after becoming exasperated with the o-rings, I decided to replace them with a sealant made from silicon and discarded the faulty o-rings in the trash. I then filled the system with distilled water and conducted a quick pressure test. Unfortunately, it was leaking, and the bubbles were not coming from where I connected my graphics processing units (GPUs) or pump but instead appeared to be originating from the middle of one of the blocks. Based on this observation, I hypothesized that the PLA material I used may not be waterproof despite my best efforts to make it as solid as possible. In any case, designing this custom cooling system was a fun and engaging experience, and perhaps someone out there can benefit from its design and build a working water cooling system using similar components.