10NES

The 10NES is a microchip on the NES console that locks out unlicensed games. It looks for a second chip on the inserted cartridge. If this chip is present, it will present a code, thus allowing play of the game.

It is sometimes removed as a mod. This is done to ease the playing of games, as if the contacts are dirty and the chip does not get a perfect connection, the NES's power light will switch on and off.

The 10NES was only installed in the original NES(NES-001) and not the redesign(NES-101), or "Top-Loader".

To disable the 10NES, snip pin 4 of the chip and bend up.