This guide, along with my store, will help alleviate both of these issues by providing installation diagrams, and a place to purchase the chips. The biggest problem with PsNee chips is that they aren't very well documented (in terms of things like installation diagrams for every board revision). Once you know what board you have you can click on the board model and you'll be sent to a page with the installation diagram. To actually know what board you have you'll most likely have to open up your console and look for the board version printed somewhere on the board (something like PU-22 or PM-41). You can get a good idea of what board you have by looking at the model number underneath your system (something like SCPH-7501). PsNee modchip installation diagramsīelow is a list of all PlayStation 1 motherboard versions, along with the console model numbers associated with them. If you want more information about PlayStation 1 modchips in general check out this guide. It includes general information about the chip, and then links off to installation guides for each console model. It's organized like this primarily so that comments can be more organized and useful for readers. This guide is structured into several pages. If you are looking to purchase a PsNee modchip they are for sale in my store. This guide covers everything you need to know about choosing, programming, and installing a PsNee modchip into your PlayStation. They can be made using many AVR processors, including the Arduino Uno, Arduino Pro Mini, ATtiny85, and ATtiny45. PsNee modchips should work with every version of the PlayStation 1. The PsNee modchip is a newer chip that has been under development during the last couple of years, and is still under active development.

Mayumi v4 diagram scph 5501