- Mar 5, 2011
- ASUS Prime X299 Deluxe
- i9 7980XE
- Radeon VII
- Mobile Phone
So, with a riser cable, yes, then use slot1. Slot1 is the best, if you can use it.
Yes, probably best to install Windows first (that's because of Windows boot manager, which will try and take over booting for everything - at least it did with me). Windows is also a good test for your hardware. Lots of utilities that you can use to test there, if you want. I would get Windows going, and especially make sure that Thunderbolt is working there before moving to macOS.
No, I had no issue with LAN, but I use a Syba Aquantia 10GbE card, and it works natively with macOS. For Windows, I downloaded the drivers and installed them - worked fine. For the 1Gb cards/chips either Mieze's Ethernet drivers or the SmallTree drivers should work just fine. Both drivers are easily obtainable, and may be included in the downloads from kgp's thread (here on this site) or Github. You can also download Smalltree's drivers direct from Smalltree's site. The point is they're not hard to find if you need them.
You should use the EFI that djlild7hina has posted (for OC) with only a few modifications and that should get you going in OC. But of course, read the documentation on OC, and remember, OC is still very much in development (think beta), still very new and different. In many ways, maybe better, but still very new.
Clover EFI's are available on Github, search for kgp (before he stopped posting, he updated his system to a Sage/10G), or despite the fact that his thread here on this site is closed, I think you can still download from it, and you can still use most of his guide to get you going on Clover. You should update some of the drivers (for Clover), but I still think you should be able to get it going with little effort.
Due to bad experiences I don't post my EFI's anymore. Good luck.
mm2margaret, good morning is this Syba Aquantia 10GbE card?