Doesn't boot from UniBeast USB-Stick

[Chrissikaa]

Hi guys,

I have the following problem:

I made a bootable USB-stick with Unibeast 1.7.0 (latest Version for OSX ML). This stick is USB 3.0 compatible (Is that a problem?)
I configured the mobo like it was shown here on tonymac.
I plugged in the stick and then I was booting from USB-drive

Must be the correct way so far.

After a few seconds (maybe 15 or 20 seconds) of "booting", showing the light grey background with the dark grey apple-logo (and the spinning thing underneath it) the diplay freezes and showing a textbox:

"You need to restart your computer. Hold down the Powerbutton for a few seconds..." in 5 different languages.

What is the problem here?

My specs:
- Gigabyte GA Z77 DS3H (rev. 1.1, BIOS Vers. F8)
- i5 3570k
- 8gb RAM @1600Mhz (2x 4gb)
- Gigabyte GTX 660 (non Ti)
- SanDisc Extreme 120 GB SSD (for the OS)
- 1TB Seagate Barracuda HDD

English is not my mothers language, sry for that.

Hope someone can help me out!

I tried to plug out all the USB devices that aren't needed, I pluged out the 1TB HDD, even the DVD drive, nothing helped. I tried different USB-slots and I searched this forum (and others) for about 2 hours, nothing found...

Next step: updating the BIOS version from F8 up to F9.

 

[Khan]

Update Bios to latest version. Try with GraphicsEnabler=No and or -x.

 

[Chrissikaa]

Update Bios to latest version. Try with GraphicsEnabler=No and or -x.

Thx m8 for the tipps!


I tried with GE=No, -x, -v

In verbose mode I recognized a error message "unknown CPU Model 0x3a"

I replaced my GPU (GTX 660), and after that it worked, right now OS X is installing.

 

[uriel0424]

Same problem here...