why is that better ? because i got the antec and im using a push pull extra fan it sticks out right across the motherboard when mounted on the back i did think about putting added fan outside case but it would look naff so ive mounted it on top towards cd drive which i dropped down a couple of slots all looks neater and fits nice just worried it might not perform as well in that orientation but ive seen a few examples of it installed like that since i posted this