no, mine is htg_tech (i can't answer you in private messages because i didn't have 75 posts on this board).
LG have much better colors than HP. HP stopped producing z27q so i think it will be hard to find monitor in good condition.
I didn't recommend Intel cards with Smalltree drivers. I have issue with them - problems in virtual machines (I've tried VMWare, Parallels - same result) - some packets, coming from VM to real 10Gbe network, are arrived twice. This drops network speed to 1-3Mbps. AQN107 cards works like a charm.
I have a problem with LG 5K: after booting monitor is recognized in os x and it thinks that it is powered on. I have two monitors - second monitor (connected with DisplayPort) is turned on, and I see that macOS draws first desktop on first monitor (LG 5k). BUT, LG 5k in fact isn't turned on - I...
Currently I'm stopped on LG 5K B-version (seconds LG 5K I've bought) - it works with X299-based hackintosh without a problems (except I need to unplug and plug Thunderbolt connector in order to make macOS detect monitor).
The first LG 5K I've bought was A-version, and it has image retention...
I have two IX2790, both have issues: dead pixels, always-on-pixels, and image retention along the edges of the screen.
Also I've tried Liyama 5K monitor - it's have fully same panel and hardware as used in planar (and same issues).
Dell UP2715K I've used over a year have inconsistent white color...
Is there are any manual how to enable PCIe tunnelling ? I've setup my BIOS as stated in KGP's manual, and inserted titan ridge into a second PCIe slot. But monitor still not powers on with system startup - i need to plug out thunderbolt 3 connector after a system startup and plug it in again.