POST code EB means "Calling Legacy Option ROMs". Do you have any add-in card attached? Remove all devices and leave only PSU, CPU and memory, and boot the system. If you hit <F2> during POST, can you go to the BIOS setup screen?
I do not have any add-in card attached. I am not able to press F2 to enter bios either... i am stuck to logo screen.
As i said before the only device i have attached is the ssd, exept cpu memory and psu...
My problem lied on a USB DVD-RW that needed 2 USB ports for operating ok. Since i plaggued it in my motherboard got frozen....and when removing it, all was fine again.
I had to install my operating System (SBS 2011 Essentials) using a USB flash drive for booting.
All is well know.