I finally got around to testing out Black Ridge on my Z390 Phantom Gaming ITX mobo, and here are the pics:
RAM clearance is all good:
This is the only thing I could think to measure:
PCIE lane clearance perspective 1:
PCIE lane clearance perspective 2:
I didn't really know what to measure, but it does for sure fit the board. I'm currently running it with a Prolimatech Ultra Sleek Vortex 14 140mm fan on top, but I can assure you that the 92mm fan fits underneath on this mobo without an issue. It's sort of tight, but that's pretty normal for SFF things.
As far as cooling goes, I don't want to say too much until I ensure that everything is making proper contact, and that my kryonaut spread properly... As
@SaperPL mentioned before, the mounting solution leaves a lot to be desired, and I could definitely see someone destroying their mobo being even the least bit careless while installing this cooler. My first impression is that even with the 140mm fan on top, it doesn't hold a candle to the Corsair H60, but that seems pretty obvious. Once I do more testing, I'll be more specific.