My PSU has a 120x25 fan, right now it's the noisiest part in my PC, all because it's really close to the components, what makes it even louder. My idea is to replace that 120x25 for a 120x38, mounted externally using an adapter. The adapter is going to be screwed to the case, so it can be used with any PSU. When installing the PSU, you screw it and plug the power cable. The adapter is going to have a small slit close to the edge that's next to the case. The fan is going to be screwed to the adapter, and then the adapter is going to be screwed to the case Improvements Make a hole in the back of the PSU, remove the power jack and switch, and use speaker mesh. Make a hole in the top part of the PSU and use speaker mesh. Put the power jack in the part of the PSU that's inside the case. Make a hole in the lower rear part of the case for a power jack and switch. Solder a power cable to the power jack in the case, and leave the male plug on the other side of the cable, so you can plug the PSU internally. What do you think about it? Any thing to improve?
It's going to take some more room, but it isn't that big, the base of the adapter is going to be around 10cm.
why bother with a 38mm fan, they're louder than 25mm variants... they generally dont undervolt well either. 38mm fans are only useful if the zone the airflow is intended for is highly restrictive; a psu isnt. Go with a 25mm thick fan.
It's a mini, Antec 1650, so it's really small. They aren't louder, it depends on the model and voltage. I already have a 120x25 fan in the PSU right now. I already have 2 120x38 undervolted fans in the case, and they work with 4V, I've made a fan controller that goes from 4V to 11V
Take 2 The wooden part is going to be screwed to the case by L shaped aluminum. The top part, that holds the fan, is going to have a latch, like the ones that tool boxes have, and the other part of the latch is going to be on on the sides, as shown in the pic. The wood is 6mm thick.