Writing to unknown EEPROMs can break your computer. DIMMs contain an EEPROM and if you overwrite it, your computer may not boot anymore. Reading 8bit EEPROM using 16bit addressing may actually WRITE to the EEPROM. Be careful. The following chips use 8bit mode: 24C01 24C02 24C04 24C08 24C16 Bigger ones use 16bit addressing so you must use -16. When in doubt, check data sheets. If you are not sure what you're doing, DO NOT use this tool.