what X-Predator said. you want the front as intake and the side and bottom as intake and the top and rear as exhaust...hot air rises so the best way to expunge it properly is to let it rise and get exhausted out
the asus crosshair v formula z is highly recommended for higher clocks on vishera chips, along with the sabertooth 990fx and the gigabyte 990fxa-ud7 and ud5. could it be not enough power supply? definitely need water cooling for the higher end vishys like the 9590
switched from team NVidia to team AMD for graphics after all the nonsense with the 970. found a killer deal on the gigabyte radeon r9 290x im using. 262.96 open box at microcenter. couldn't pass it up and if it falters I have the walk in warranty for 2 years on the card.