Cant get to 10.11 installer

Im fairly certain the problems I am having are due to Renesas USB 3.0 and 10.11, but I cant for the life of me figure out how to overcome it. Im fine not using USB3, and using the ports as 2.0 (if possible). The laptop has 3 usb ports, 2 USB3 and 1 USB2. Ive flashed a modified BIOS, and it does allow me to turn off particular USB ports, but there are lots of them in there and its not clear what is what, but it is theoretically possible to shut them off via bios if needbe.

I have UEFI...

Cant get to 10.11 installer