Power supply from defunct computer
For a number of reasons I wanted (needed?) a stable power supply with a bit of Oomph. The one I was using was very limited. So I explored redundant computer power supplies. They can give a variety of voltages, some of which at quite high current.
I found a Web site that described the main issues in turning a computer unit into a bench power supply for the workshop. The main point is that we are looking at the more recent ATX power supplies that have the on-off switch controlled via the motherboard.
I suggest you follow the information on that site as it has been written with safety in mind by a workshop technician. I DO NOT SUGGEST that you take this project on unless you know what you are doing!
When completed the supply should be placed in its own storage bay so that the ventilation slots are not exposed. Wires, connectors etc could drop down onto the mains section where full voltages are found. This is particularly important for those using 240v.