ChairMao,
A few pointers:
1) Check in your BIOS if your USB Unibeast stick reads as a UEFI device.
2) Disable Bluetooth, LAN, VT-d in BIOS.
3) Enabled Virtualisation, High Precision Event Timer in BIOS.
4) Check if your stick was formatted using Master Boot Record and Mac Extended (Journaled) format.
5) If there are still problems booting up, re-create your Unibeast stick or try another USB stick (as your current one could be faulty).