Built in January of 2016. The motherboard is actually an Asus X99-A 3.1, not listed on the site.
It's power hungry with a pair of 295x2 cards, though video performance excels. 60fps at top settings in 4k in anything.
Plumbing the three separate water loops was not a big deal, though I improvised mounting points in the top mesh of the case. No drilling however.
The second monitor is in portrait next to the larger 4k in landscape which makes for great reference while gaming or developing software. HipChat and Gmail on the portrait display, real work on the other...
This rig is mostly idle when rendering for the Rift.
The Samsung SM951 cranks at 477MB/s write and 2231MB/s read which hosts my Steam library.
The Intel 600p gets a PCIe2.0 x4 link off the chipset, which isn't a terrible compromise at 549MB/s write, 1316MB/s read, off of its PCIe3 rated 1750MB/s. I've 4x lanes wasted to the CPU but there's no way to split that with the SM951. The BIOS had to be forced to PCIe2 from Default and also set to x4 for the slot.
Both PCIe drives are on "SMAKN® M.2 NGFF PCIe 4 LANE SSD to PCIE 3.0 x4" risers so I don't have to reach under the lower video card for access. Oddly enough one card came with a green activity LED, the other blue. Handy to see what colors are strobing through the case.
The 64GB RAM kit works well, nice to know I can double that easily enough. I work with VM images for a living and need the space for performance simulations.
Both video cards get 16 lanes of PCIe3 direct to the CPU in addition to the Samsung PCIe x4 SSD. The big Intel chip is a fantastic IO switch. The 1600W power supply doesn't have a UPS, due to its power consumption.