chublord wrote on 2020-07-20, 16:23:

gdjacobs wrote on 2020-07-20, 04:16:

staticelement wrote on 2020-07-19, 03:38:

Recently purchased an AT case to start building my DOS build. Case came with a Star 230W Switching power supply. I can’t find much information on this PSU. Here are a few pictures.

No transient voltage suppression. No line filter. Schottky diodes in a barrel package using the inadequate heatsink as a conductor.

It's junk.

What do these missing components look like? do you have an example of a good one?

You can see some of the input filter in the top right of this picture. Additional filter components are attached to the socket on a small daughterboard.
https://www.techspot.com/article/1967-anatomy … 020-01-23-image

The yellow box components are called X capacitors. The blue disks are called Y capacitors. They're both designed to reliably fail as a short circuit and open circuit respectively.
https://www.allaboutcircuits.com/technical-ar … s-y-capacitors/

Thanks for all of the great replies!

I will definitely not use the PSU.

Hopefully I can find something more durable soon.

Best regards