Hi,

That appears to be the original PSU you should change this. You can look up how to do it on this site. I’ve done it wasn't that difficult. I used the 60 watt version runs cooler.

You still have other issues as others have mentioned. I would remove all cards and inspect everything under magnification and go from there. If the analog board that has been worked on before appears to be the only problem you maybe able to find a local tech that may be able to repair it. Otherwise a donor unit is possible but most of those have blown PSU and could have other card failures.

In this case it doesn't appear the original PSU has failed yet. So maybe, removing all cards and cleaning all contact surfaces may help.

Assuming that analog board is working properly.

Good Luck

Ron