i personally don't know about the pc-70 cuz i haven't had alot lof look see at the case but i know that there is a extremely simple way to put the enermax into a pc-60 case. i was reading before how the reveiwers said that they had problems installing an enermax with two fans. some resorted to unscrewing the the fan grill on the bottom of the psu. but this is what i did i installed the psu backwards.... as in instead of inserting the psu straight into the psu hole i just took the psu put it where the top 5.5" bay was, pushed the psu up to the top of the case and just pulled the psu towards the end of the case and whalla no unscrewing anything and simple. well hopefully i was able to explain it well enough if only i had to pictures to show ehehhe.