Will say it’s extremely unlikely that the caps on SoC ever fail and if they do it’s almost always down to user intervention, for example modchip installs causing undue stress on them - thereby it’s only a common failure in these limited circumstances.
In your case, is it a mariko?
There is one cap on the SoC that normally tests as a closed short, so it’s likely not your issue…though i’ll double check later to verify which paricular cap it is