Hello my friends. A user from Brazil here.
I have two hacks. One of them, is with this lovely motherboard. I'm currently running a Gtx 560Ti running the Sierra.
As soon as I get an RX 560 or RX 580 on this Black Friday I also want to migrate to Mojave.
Wish luck to everyone who wants to update the system.
Thank you always for the tips my friend Stork
You'll love your RX 560/580. I have a Sapphire RX 580 Pulse 8GB card in MyHero II build. I also had to change the Frame Buffer with a patch in MyHero II's config.plist. Although Apple supports the Sapphire RX 580 Pulse 8GB card natively in 10.13.6 and Mojave, Apple only "hardwired" into the graphics kext the first two releases Sapphire RX 580 Pulse 8GB card ID #s. So, since my 580 was newer, I had to use the Frame Buffer patch to get the correct Frame Buffer for the card; otherwise it uses the RadeonDefault Frame Buffer. You can tell if you need the config.plist Frame Buffer patch for your 580 by my procedure in the OP of the MyHero II build description, post installation steps. Be advised that my procedure is for the Sapphire RX 580 Pulse 8GB card. If you get a different card, you'll have to find out if it's worth it to you to hunt up the correct Frame Buffer and patch the config.plist with that Frame Buffer.
Speaking of that build...I have a post that shows how to update to Mojave from High Sierra at Post #448
in the MyHero II build description. While your MultiBeast settings for audio and Ethernet chipsets will be different, you can see what the upgrade procedures are like. Be advised that Mojave 10.14.1 still has some bugs (as I state in the post), and, consequently, I don't recommend upgrading from High Sierra until at least 10.14.3
has been released so as to have the major bugs worked out of the OS.