An astute engineer has taken a closer look at the console's innards and revealed the first fully functional PS1 motherboard prototype developed outside of Sony. The project has an apt name - "nsOne" (short for "Not Sony's One").

On December 3, 1994, the first-generation PlayStation game console was released. The gaming world has changed dramatically since then, but the PS1 remains wildly popular among retro enthusiasts. But only 30 years later, aging problems were destroying this legendary machine, and even if it wanted to be repaired, there were no replacement parts. So someone decided that since there were no parts to buy, I would make it myself.

Italian electronics engineer Lorentio Brodesco was repairing a PlayStation 1 when he discovered that the original technical documentation was either incomplete or simply missing. This discovery led him to embark on an ambitious project: a complete reconstruction of the circuit diagram of one of the most successful gaming consoles.
Brodesco took an unconventional approach to achieving his goal. He polished an original motherboard layer by layer to expose its internal wiring layers, and then compared the exposed wiring with the component data in the repair manual. Through optical scanning technology and manual reverse engineering, he used modern PCB design software to reconstruct every circuit of the PlayStation 1 wire by wire.
It's compatible with all original PlayStation 1 chips, including CPU, GPU, SPU, RAM, oscillators and voltage regulators.