I have a hardly used Little Devil unit I bought new in March if you are interested.
LD PC-V2 115V Phase Change - Black XL Suction Line - LD Cooling Computer Cases
I noticed you are also looking for an SS unit. I ran mine on an SS unit for a good while and 5.0 with 5000 cache wasn't hard.
http://img.techpowerup.org/170320/capture026.jpg
http://img.techpowerup.org/170320/capture005x.jpg
http://img.techpowerup.org/170320/capture007x.jpg
http://img.techpowerup.org/170320/capture029.jpg
http://img.techpowerup.org/170320/capture033.jpg
Just installed a new set of G.Skill F4-4266C19D-16GTZSW and it keeps hanging on codes 55, CC, 01. Board works fine with these other kits. F4-3200C14D-16GTZ & F4-4000C19D-8GVK. Using BIOS 0701.
I have one in my daily driver I run at 4.6 with 1.225v and have run it at 4.8 with 1.35. Does 5.7 on ln2. I'm only running a single Swiftech MCR320-QP rad so I've never pushed it hard on water.
http://img.techpowerup.org/170316/capture1438.jpg
MetalRacer`s Ryzen Blender score: 28.37 with a Core i7 5960X
MetalRacer`s wPrime - 1024m score: 1min 3sec 308ms with a Core i7 5960X
I did try uninstalling and reinstalling on Win7, Win10 and XP64 but had no luck. I first encountered the problem when I enable ln2 mode and it persists even with ln2 mode disabled. I should mention this is with the full size OC Formula.