No random shut down issues here.
2700X, EVGA SC2 1080Ti, F4 3200C14D-32GTZ ram, AIO cooler, 1x960 EVO (moved to slot 2.1 for full x16 PCIe 3.0 - cooling plate fits nicely), 2xSSD, 1x4 TB HDD.
All in a Fractal Design Define C case. My board came with bios 0207 which could run ran @ 3200 MHz. Updated to 0509 and ram was unstable.
So I lowered Ram voltage to 1.3450 and SOC to Offset - 0.1250 (ProcODT_SM, RTT and CAD the same as before) and now it's humming along nicely.
I also had the fan up / down issue. But after tweaking fan profile it's more "normal" now.