PSU on wall mounted PC

[Fireger]

Hello again guys
Im enquiring about how i should attach my PSU to the board? ive seen some people use L brackets as a shelf, while using the holes at the back to screw it into another pair of L brackets. While ive also seen other people drill holes into the bottom of the PSU and going from there

What do you think? should i drill through the PSU, or use L brackets as shelves?

 

[Zerk2012]

Not sure I would drill into the PSU=warranty gone!!!! If you could care less about the warranty and desire a cleaner look then Google the PSU and look at the insides to make sure your not going to be drilling into any vital areas.
Actually I would think just L brackets (2) with some double sided 3M tap to help hold it would work without any screws since it's wall mounted unless it's where it could be hit.