Should I OR Shouldn't I cut hole?


image.jpeg image.jpeg image.jpeg Hello. Bought a new power supply for a " new build" and as you can see the Thermaltake has a BA fan on top. The case I'm using has NO hole in top where this fan would be. My question is. should There be a hole? I know some would say go get a new case, but what's the fun not modifying. I like playing with my angle grinder


Active Member
Can't really tell from that one picture. But if it was me I would make sure there is room inside the case to mount the power supply and that fitting it inside the case isn't going to foul any wires or boards/drives etc then havatit with my angle grinder/tin snips.

I have to say that without any more pictures I don't really know but if your case is a desktop case then it is highly unusual for it not to have an internal power supply and therefore the place and space to fit one.


The case is a mini tower and I did "Test fit" with mounting screws and yes it fits great. The power supply is a Theraltake 1000watt Gold semi-modular. There is about 1/2-3/4" clearance from top power supply to top of case


Two things will happen if I mount upside down. 1) warm air will be blown down over water cooled cpu,motherboard, etc and 2) the 4 mounting screw holes do not form perfect square


Staff member
The PSU fan is an intake not an exhaust. Also if you actually look at the PSU it's not square either. There should be screw holes at each spot.

Any $30 case worth a hoot will have a bottom mounted PSU. If not, and no vent on top just gotta mount it fan inside. That's fine though, most regular (non custom builds) are like this anyway.