Just an observation from an electronics challenged guy; The capacitors that are just attached like those are, how to say this, are not necessary for proper functioning. However those that are on circuit boards are. When they go pop things quit working.
We had a video card in our last computer that blew 4 o5 capacitors. Each one sounded like a .22 going off. Each time the computer went into arrest and came back. Until the last one when I just quit till we pulled the video card.
Joe