Crash when trying to install El Capitan

Hi!
I'm trying to install El Capitan with Unibeast 8.2.2.
My motherboard is a GA-Z68MA-D2H-B3
The UEFI BIOS version is U1C

I have tried different BIOS settings (as explained on installation guide).
It starts well but after 30 seconds...

View attachment 207893

(sorry the picture is not easy to take...)
Does someone knows what to do?

Thank you.