The Xbox One S NCP chip power failure issue can cause the console to fail to power on or shut off unexpectedly. This issue typically involves the NCP chip, which plays a key role in managing power and communication between various hardware components.

When the chip malfunctions, it disrupts the console's power delivery and causes inconsistent operation. Users may notice that their Xbox One S shows no signs of life or experiences frequent shutdowns, even when plugged in properly. Repairing this issue often requires professional service to replace or reflow the faulty NCP chip, as it is an integral part of the system's power management.

Changing the NCP chip restores the Xbox One S to full functionality, resolving power-related issues and ensuring stable performance.