Like I mentioned in FB, that blue cap by the switch is original. I'd change it if it was me. And I can't see well, but probably the ones by the heat sinks that are straight-thru regular aluminum caps (and not SMD) might be originals (and thus I would change too). Whoever did it, went after all the SMD caps, and left at least that blue one alone, best guess.
EDIT:
This is a shot of my original Turbo Duo motherboard. I can see a light blue one and 2 dark blues by the heat sink. I guess he did change those too in your case! So, that leaves the blue one by the switch. As for the rest, see if they look new to you and are the same brand he used all over the place, etc.