Term: PlayStation 3, Description: seventh-generation and third home video game console developed by Sony Interactive Entertainment, Question: Can a ps3 turn off by itself?, Answer:No
Fact1: To save power, the PS3™ system and wireless controllers can be set to turn off automatically after a certain period of inactivity. Fact2: PlayStation 3 is turning off for no real reason, Fact3: if it is automatically turned off it's generally the sign of overheating, damaged CPU Fact4: the PS3 just trying to save power and you just need to turn the setting off. 