I’ve recently gone through a capacitor phase… I’ve found many components that have failed due to the typical bulging electrolytic capacitor.
Some have been graphics cards. I had a LCD display (hell to disassemble, but only had 1 faulty power capacitor).
In some cases, the circuit board would cost $100 – $200 to replace (when an $8 capacitor was the only fault!).
Just remember not to reverse the polarity on electrolytic capacitors (otherwise the capacitor makes a loud bang as it explodes… :-O )