Install Guide - pyroesp/PlayStation-1-Reset-Mod GitHub Wiki

Installing the mod is fairly trivial and should work with all PlayStation motherboard models.

There are seven contact points on the front of the PCB you need to solder on the motherboard of your PlayStation 1.
All of them have to be connected for the mod to work.

pcb front

There are different motherboard models of the PlayStation 1.
You can find the model number somewhere on the motherboard. This model starts with 'PU-' and then a number.

Here's a non-exhaustive list of images showing where to solder the mod contacts to:

If your model is not listed above, you can try to follow this picture showing the pinout of the flat flex cable connector to the controller board to find suitable connections for the mod.

controller pin map *Image by Damn-Deal-Done