MacOS Sierra, MSI Z270 SLI PLUS, i7-7700k, cannot boot into installer

[Qwest408]

I also have the same motherboard however , the computer freezes at "Press any key to boot from USB" and its in a usb 2.0 port, I've tried multiple flash drives same problem.

Any thoughts?

 

[iveusss]

I also have the same motherboard however , the computer freezes at "Press any key to boot from USB" and its in a usb 2.0 port, I've tried multiple flash drives same problem.

Any thoughts?

Did not had that problem at all. I wrote iso image by rufus, the iso itself uses clover, which runs perfectly.

If the problem would still be, try to update bios and reset it to defaults. But i think, it's something about iso burn..