Definition:
An EEPROM (short for electrically erasable programmable read-only memory) is a small memory chip that retains data even without power, unlike DRAM, and that can be erased and rewritten many times.
Modifying, or disabling the EEPROM is essential to installing custom firmware on many consoles and handheld video game systems.
Also Known As: SPD, serial presence detect - A programmable EEPROM chip on a memory module that provides information to the system about the module's size, speed, CAS Latency and chip architecture.
Examples:
Removing the ground on the PSP battery's EEPROM will effectively turn it off, thus allowing the video game system to enter into service mode.
