[SOLVED] Boot stalling, maybe a USB enumeration problem?

[nobodynose]

I'm trying to do a fresh install of Sierra 10.12.4 on the following system:

Gigabyte GA-B85M-DS3H-A motherboard
Intel Core i3-4330 CPU
16GB RAM
Intel HD 4600 graphics
OCZ Agility 3 SSD

The install process and post-install with MultiBeast went fine, but now I'm trying to boot from the SSD and it's not finishing. Where I think it's stalling, the console message (booting verbosely) is

000012.975466 AppleUSB20HubPort@1d110000: AppleUSBHostPort::disconnect: persistent enumeration failures

Anyone know how to fix this? Screenshot, Clover config.plist, and ioreg attached, let me know if you need any more info.

 

[Stork]

In MultiBeast did you pick the FakeSMC Plug-ins? If so, boot is the safe mode (-x) from the Clover Boot screen, then trash the FakeSMCGPU.kext in /L/E/.

 

[nobodynose]

It hangs when trying to boot in safe mode as well. Besides, I'm pretty sure I excluded the GPU plugin when I installed, because I knew it was problematic. I don't have Nvidia web drivers installed on this system, and I thought the problem with the FakeSMC GPU plugin was with Nvidia drivers?

 

[nobodynose]

Any other ideas?

 

[nobodynose]

Well, I'm still not sure what the problem was, but I think it had to do with the HD 4600 graphics. I got a GTX 1060 for my main system and moved the GTX 750 to that one, reinstalled, and had no further problems.