Temperature Sensor Chip

This is the temperature sensor chip that can be found on 1.0-1.4 motherboards.

This chip is BRAND NEW. This chip is not pulled from an old Xbox and is not refurbished old stock. 

This chip's function is to report it's own temperature and collect information from the CPU to report its temperature as well. It could just be common for them to burn out on their own but some people in the OG Xbox community speculate that they burn out due to their close proximity to the clock capacitor, which is known for leaking its acid and corroding the board. 

Regardless of the reason, if you are having issues with your Xbox reporting the wrong temperature on screen or the LED flashing 50/50 orange/off with no video output when you turn it on, and powering itself off, it's because this chip is bad. The chip is reporting to your system that the console is overheating and the system will shut itself down to prevent itself from burning up, even though the console isn't even hot.

Replacing this chip will solve this common problem.