Some people mount them by using a mounting bracket on the side of the main board and then mouting the psu as you do in a standard pc case using the screws on psu s side.
Make pc wall mount.
Learn how to wall mount your pc for the cost of 5 no tools or skills required i mean screwing in screws isn t that difficult is it join the tech discor.
How to build a wall mounted pc.
Next you will have repeat the process that you did with the cpu radiator.
Turn the gpu around put acrylic on it mark the two holes drill holes into acrylic m2 2mm bit m2 5 2 5mm bit widen the holes on the top 1 2mm.
Our step by step video guide takes you through the challenging process of building a pc in an open air case meant for wall mounting.