FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -To fix a Windows PC that won’t turn on, first try ruling out a faulty power supply or outlet. You can also try checking for beep codes, display issues, unusual BIOS settings, or troubleshoot the PC in Safe Mode. Other fixes include disconnecting non-essential devices and checking for loose components and malware.

Detailed explanation-2: -ATX power supplies are turned on and off by a signal from the motherboard. They also provide a signal to the motherboard to indicate when the DC voltages are in spec, so that the computer is able to safely power up and boot. The most recent ATX PSU standard is version 3.0 as of mid-2022.

Detailed explanation-3: -If the PC does not boot up after the power supply has just been replaced, Seasonic recommends clearing the CMOS memory of the motherboard to reset the motherboard to its factory default state in order to clear the settings related to the previous power supply.

Detailed explanation-4: -Under normal circumstances, all power supplies (including those with an on and off switch) and their fans turn on due to a signal they receive from the motherboard. Therefore, unless your power supply connects to a working motherboard that sends that signal, the power supply will not work.