Quote Originally Posted by Coris View Post
That mobo... is it upside down? o_o

Mostly all the PSU cables are labeled (well, mine are xD") and maybe you can tell from the pins where to put 'em. Maybe it also helps to take a picture before removing the old PSU.
Otherwise, I bet there are some videos on Youtube which explain how to install a PSU/Graphics card

(Do not worry! Even I managed to get all the cables in their right places when I switched cases last year! Still, it took me a loooooong time to finish this because I was so nervous and afraid to damage anything. Never did it alone before @.@)
It does look that way doesn't it lol, i honestly don't know, its the only decent pic i could find on google for the Compaq Presario CQ5320Y.