If your computer not turning ON, it can be a sign of various issues, with the power supply being the most common culprit. The first step is to thoroughly check all power connections, ensuring the power cord is securely plugged into both the computer and a functional wall outlet. It is also a good idea to try a different outlet or power cable to rule out a potential issue with the power source itself before considering more complex internal hardware problems.
https://pcsservices4u.com/computer-not-switching-on/