I can't even boot OSx from USB - MSI M5 Z170A - i5-6600k

Hi, I'm following this guide... as I cannot find a m5 specific guide...
http://ift.tt/21H31nj

But I cannot even succed to boot osx from the usb.

this is where it got stuck
http://ift.tt/1Wg1Mwd

my PC:
MSI M5 Z170Z
Intel i5 6600k
MSI GTX 970 4GB GDDR5

what can I do?

submitted by /u/salamala893
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