Begin Building first PC

[Pemalite]

Bruxel said:
is it safe to turn on the computer to just test out if everything is working fine, evan with out a case fan? and will turn off after to see if it runs

Yes. - Leave the side cover off however.
But before you do that, it's always a good idea to just go over everything, to make sure everything is plugged/screwed in correctly and you didn't leave anything on the motherboard like a screw or something.