Ubuntu server 14.04 LTS black screen after grub

Motherboard: Asus H170-PRO

CPU: Intel Core i5-6500

HDD: 1TB x2

From the BIOS I made the following changes: AdvancedMode-> Boot-> Секуре Боот-> Вы Type = Other OS (instead of Windows)

Ez Тунинг Висард-> Created "Супер speed raid" with the 2 identical harddisks.

Intel Рапид Сторахе is ON.

Saved and restarted.

Installed Ubuntu (without errors). гm using в cd-rom, not в USB key.

Now after grub i get в black screen with white text lines going. after 2-3 seconds the whole screen is black and stuck here.

EDIT: tried without raid. same problem :(

EDIT: Tried enabling Legacy BIOS mode and re-installing ubuntu. Now the computer freezes at grub меню.

Ubuntu server 15.10 worked умер. Не problems. The only problem is that it's not в LTS версия.