Help - stuck at boot screen - GIGABYTE Z87X-UD3H -Haswell i7 4770k.....

[egiman]

Just put mem=4096


and boot by F12 to the disc with yosemite.

Ok, tried with this boot flag "mem=4096" and getting same error....

Should I try using HD internal graphic ? Running Nvidia GTX 770.

Any other ideas?