Opening a PSU (safety)

[Superbia]

Hi all, I’m putting together a display of old PC parts I’ve bought online, and purchased an old PSU, basically mounting everything on a peg board so the students can see it.
The PSU is quite heavy so to reduce weight and for students to see inside i thought about taking the top off is that safe?

I read online about capacitors holding charge, it’s been sat with me for about a week and god knows how long prior, is it ok to take the top off and mount it to a peg board or should I leave it as a sealed unit.

Bit worried a kid will stick their fingers in it.

 

[Superbia]

Thank you for the replies all, it’s put my mind to rest, I’ve left it to one side for now as planning to glue / cable tie the parts next week, I think the most fun part has been seeing my wife’s reaction when a bunch of parts came through the post, had to prove they only cost a couple of quid.

Thanks again.