[Solved] Graphical glitches during installation (GTX 750 Ti)

Hi!

Graphical glitches during installation (macOS 10.12.4). Here is the verbose picture: http://i.imgur.com/gDud9yy.jpg

I'm using nv_disable=1 boot flag, but does not work. Any idea?

Config:
ASUS P8Z77-V
Intel Core i7-3770
16GB 1866MHz Patriot RAM
MSI GeForce GTX 750 Ti

"Still waiting for root device".
When installing this means that your USB flash drive cannot be found.
This is usually because the flash drive is in a USB3 port.
If this is the case move it to a USB2 port, if it is already in a USB2 port move it to another and try again.
Repeat until you have tried all USB ports.
Use a USB2 flash drive.
If it still doesn't work you could try another flash drive.
You might also try enabling Legacy on your USB3 ports in your BIOS settings.

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I'm using front USB2 port(s). I plugged in to the rear USB2 port (directly to the motherboard port), and it works! Thank You!