[Solved] Boot disk not seen by EFI Mounter / CC after CPU / Motherboard Upgrade..

[Fauna]

Ok, I'm super stuck here so thanks in advance for your patience / help..

I recently upgraded my motherboard and cpu from z270 and 7700k to Maximus Hero X and 7800k. I noticed that I no longer could mount my OSX drive to edit plist etc but otherwise everything ran well. This morning I updated High Sierra to 10.13.5 (17F77) and I've had absolute hell ever since. Not only can I still not get to my EFI folder but there are graphics and performance issues in Chrome and my 3D program Cinema4D - I can barely pan around a cube. I checked Photoshop which is fine it seems but haven't had time to check any other programs.

Because I'm an idiot and broke I don't have CCC but I have recent Time Machine backups so after many driver re-installs and double checking kexts etc I formatted the drive and reinstalled fresh according to Stork's Hero II guide: https://www.tonymacx86.com/threads/...ximus-z370-hero-x-i7-8700k-amd-rx-580.245074/ but the problems all remain.

I'm really at a loss and I'm very worried about jeopardising the project I'm half way through. Any suggestions would be great!

 

[Fauna]

Ok, so it appears the issue with mounting my boot disk efi partition was down to not correctly partitioning it during the new install. This is working now. I can only assume that the problem with that the first time around arose not from hardware updates but a minor OS X update at the same time that could have converted my boot disk to APFS..?

Anyway. I’ll make sure I get CCC so I don’t have to go through all this again and I’ll move my performance question (Chrome is still not displaying correctly) to the Graphics section.