A win this time.

One of Olivia's friends computer wouldn't boot up, something that was very puzzling but since it booted from another power supply, that shortlisted things to inspect before changing it.
This capacitor in the poser supply looked slightly suspect so I whipped it out and put a slightly different one from my stock at home, happily the result was booting and running stably.
This one was a 330µF 16V, I put in a 470μF 35V, close enough for Jimby until it explodes.
How I saw the bulge is hard to explain given my eyes couldn't read its value and I had to take a series of photos so I could tell what the numbers on it were.