This build started in 2015 with a simple question - what is the smallest case into which I can fit: - 1 x 240mm AIO CPU cooler; and - 2 x EVGA hybrid cooled graphics cards in SLI?
What followed was somewhat of an odyssey, and has now reached the point of ridiculousness.
I spent around 100 hours modifying the Corsair Graphite 380T mini-ITX case to accommodate a micro-ATX motherboard, together with manufacturing custom PSU cables. The initial setup included 2 x EVGA GTX 980Ti Hybrids in SLI.
Whilst the 980Tis were OK for pushing high FPS on the 165Hz Asus PG279Q IPS 27" monitor, by the time Titan X Pascal released I was itching to get my hands dirty again.
Madness ultimately prevailed, and I had 2 x Titan Xs shipped to Australia along with 2 x EVGA hybrid cooler kits (to suit GTX 1080). Within hours of delivery AUD4,280 (delivered) worth of hardware was in pieces on my desk, with the hybrid cooler baseplates dremelled to fit the TXPs.
The end result is an absurd level of GPU power in a tiny package. Do I need this much GPU performance? No. Do I have more money than sense? Arguably. Was it a fun project? Absolutely!
I have the hybrid pumps powered from a motherboard header instead of the card, using a mini-GPU fan cable running out the back of the card. Hybrid radiator fans and pumps are then controlled by a custom curve in speedfan. I find this works well for managing hybrid pump noise.
Notwithstanding the compromised airflow I can keep everything in the high 50s (C) when gaming, with acceptably low noise.
Fire Strike Ultra 12,730 (14,389 graphics) with 4790K @ 4.8GHz, DDR3 @ 2400MHz and TXPs @ +200 core (around 2,050MHz) / +350 memory. For daily use I run the CPU at 4.6GHz for reduced H100i fan noise and TXP memory at +250 for improved stability.
Edit 1: For those who have requested additional details of the mATX mod, here are some photos from when I disassembled everything to do the custom cables (back when I was still running the 980Tis): http://s1081.photobucket.com/user/photobucket429/library/Corsair%20380T%20mATX%20disassembly%20and%20cabling