Probably not going to see Z390 chip set mother boards announced until end of this year or start of next year. Intel is having continual issues with 10nm production which Cannon Lake is based on and Cannon Lake has been delayed multiple times because of it. Looking like sometime in 2019 for Cannon Lake and Z390. Doubt any manufactures will unveil Z390 mother boards until Intel is getting ready to release Cannon Lake CPUs (or at least have an official release date). I don't even know if Intel is sending engineering samples of Cannon Lake to manufactures yet.

There has been talk on Z390 since the middle of 2017..........
 
I'm not saying manufactures are not already working on Z390 mother boards. Just saying you will probably not see them for a bit longer. There is no reason for manufactures to release them for sale to the public until Coffee Lake-S 8 core CPUs & Cannon Lake comes out which is what Z390 is for. From what I have read so far on Z390, Z390 is not going to give you really anything majorly new that Z370 does not already have other than support for 8 core CPUs. Since there are no 8 core Coffee Lake-S or Cannon Lake CPUs yet...........
 
I am sure the manufactures do not want to cut into their sales of Z370 boards with an early release of Z390 before 8 core CPUs are out that will require Z390.
 
Until Intel gets their act together with 10nm process technology and gives a release date for Coffee Lake - S 8 core and Cannon Lake CPUs (both on 10nm process technology), I doubt manufactures are going to announce and show their Z390 boards officially.
 
I would suspect board layout of Z390 will look just like the layout of Z370. Same 1151 socket being used for both but VRM on Z390 will be what is should have been in the first place on Z370. Will have to be to support 8 core + CPUs as the VRM designs used for 6 core Coffee Lake was barley enough at best (read all the stories of Z370 VRMs reaching 100 degree + celius).
 
 

This article says its coming out in June.

https://segmentnext.com/2...boards-coming-in-june/

Well bet you they come out in July-Sept fall the latest and in limited quantities such that each board be about $500 dollars each.

I found it useful post found here.

The z390 chipset will launch next month with the launch 9th gen coffee lake refresh. 
It is still in the rumor mill. I've personally spoke with Asus. They promise the now h370 chipset will work with the new 8 core CPU's, on lunch day.
 
I'm guessing intel is planning on launching the chipset and cpu's on the same day, is what I'm hearing. Still rumor so take with a grain of salt...
Intel 8-Core Coffee Lake CPU And Z390 Motherboards Launching In October According To Roadmap Leakhttps://hothardware.com/n...ards-launching-october

Any updates on whether EVGA will be releasing a z390 mobo in October? Do you guys think EVGA will release one with the coffee lake refresh in October or will be waiting? Have seen leaks from Asus, MSI, Gigabyte, etc...

Same here. I'm waiting to see how much better the z390 will be over the z370 in terms of overclocking. If its not so much then I might just grabbed the z370 and save some money.
 
 
 

I'd actually prefer 4 memory slots, yes 2 is good for over clocking however if you are that serious into over clocking why not just go full atx? Matx I always saw as a gamer size. Big enough for a GPU and 1 other card and small enough not to take up too much space.

So this just posted at kingpins Instagram..... either x299 r.2 or dark z390.

That is impressive

Vlada011
 
Yes, very and usefull. 
This only could mean one thing, high end Z390 board with  8+8 pin.
Maybe life time of my watercooling of X99 will be very short. 
I don't feel bad to switch from Monoblock to CPU block for such improvement as i7-5820K > i9-9900K.
Because i9-9900K on 5.0GHz is faster than i7-6950X.
I hope if that happen my memory will not be bottleneck, 2666MHz C15.

 
Another image from Jacob's twitter.  Def Z390 Dark.  But look at the two pics and tell me how the board is laid out. I can't figure it out.
 
The second one clearly shows the white outline typically seen around the edges of the socket and th outer edg of the board.
 
Thing is that the first pic shows (what I thik would be that same edge but it looks to be further down along the side. maybe I'm stairing at it too long.
 
And you're correct the 9900K at 5GHZ will stomp the 6950X, the 7900K and my bet is trade blows with the 7920.  It's going to be a CPU like Sandybridge with the only thing hampering it's lifespan being the impendiong PCIE generational migration.
 

There's a new thread for this. Dunno why they didn't just use this existing thread, but if you were subscribed to this thread and waiting for new pictures here you go.
Z390 FTW:




______________________________________________________________________
 
Z390 Dark:




So they got the dual 8 pins and the 24 pin connections clustered together by turning the socket and DIMM slots sideways? With that orientation, better double-check the clearances in your case for everything beforehand.

See EVGA Z390 Motherboards!