More details for the build process

So, I used my multimeter to check the pinout of my power supply and labeled all the pins using an online image. I got the footprint from Google, and KiCad has it in its library by default.

I used this image from lifewire.com:

Then I assigned the pins and added fuses to the schematic file for the safety of this board.

After a quick Google search, I found the connectors for standard ATX power supply cables and added pure 12V connections as well as 12V, 5V, and 3.3V connections. Routing was relatively easy. I increased the trace thickness to 0.8mm and connected everything. Ground fills are also essential.

Schematics + very simple pcb

Soooooo here I am again. After spending two weeks on my last project, I wanted to do something useful but not too complicated. For future projects, I need a distribution board for power, and what could be simpler than a PC power supply?

I initially used a standard ATX header but found them to be very expensive, so I switched to a different compatible header that wasn't directly from Molex. Then I added a power LED and an on/off switch, fuse holders for 12V, 5V, and 3.3V, and a few standard connectors for various devices.

Then everything was routed and I was so surprised how beautifully simple and relaxed it was :-)