i have a gigabyte H87n-wifi motherboard, an i3 intel processor, 8Gb of RAM and no graphics card. I am currently running Ubuntu, but i want to run Mac OS X. first i need to enter my bios, but when i press Del, i get a blank blue screen. If I press Esc, i get options and when I press System Setup i get the same blue screen. My motherboard has a dual bios system so the bios shouldn't be corrupted. I haven't upgraded the bios or over clocked anything, all I did was install Ubuntu. How can I get to the BIOS?