LG UltraFine 5K Build

[janmansilver]

Hi even though it says 2560 x 1440 this is actually retina mode. The screenshot from my MacBook Pro 2016 model says the same thing:

 

[janmansilver]

however my system is x99 based and alpine ridge card is not working properly, so I'm considering an z170 system instead.

 

[didierM4E]

With the Designare, I'm able to boot with the Ultrafine 4K but not entirely with the Ultrafine 5K : it crashed during macOS loading. Any idea?

With Apple Thunderbolt Display, it works fine but USB ports are not working. Again, any ideas welcome

 

[didierM4E]

Ok I found the issue for the Apple Thunderbolt : I had to disable the Thunderbolt Boot option in the BIOS. But still not able to finish the macOS loading on the 5k... :/

 

[FabioPeterhans]

Does anybody know if its possible to attach two 5K LG Display to a Hackintosh (in 4k it should work with the Alpine Ridge Card, but what about 5K)?
What Hardware would be needed?

 

[janmansilver]

I guess you would need two alpine ridge cards, if this is possible?

 

[FabioPeterhans]

I guess you would need two alpine ridge cards, if this is possible?

As far as I know, there are only motherboards with one Thunderbolt header.

Do 5K displays also work (hardware accelerated) on Thunderbolt ports on a Motherboard? I ask, because I know that there are several motherboards with more than one Thunderbolt ports. But are these TBP able to pass through two display port 1.2 signals?

=> I really would like to read up on that, If anybody knows how to find such information.

 

[janmansilver]

You need to be able to take two Displayport inputs in order to "funnel" two DP 1.2 signals into a single TB 3 Port, that's why the Gigabyte Alpine ridge card is interesting as it has two DP inputs. The TB header cable that comes with the Alpine Ridge card, has a "daisy chain" input/connector, so physically one can in fact connect two Alpine Ridge cards, but if it works or your need at higher class motherboard...I don't know.

 

[Wolfie81]

Has anyone been able to confirm (who knows what they are doing) that the Alpine Ridge cards work, or not work, in the Designaire?

 

[FabioPeterhans]

Daisy chain two Alpine Ridge cards.. seems to be an interesting solution!
(I would obviously also need a second GTX 1080, with two more display port outputs)
I still have to read up on whether SLI does work in MacOS.

If SLI does work in macOS and if I can get my hands on two Alpine Ridge cards, i will definitely try that!