A user complains that when they press the power button on their PC, nothing happens. What is the first thing you should check?
A)Is the power supply plugged into the wall?
B)Is the motherboard's power connection (P8/P9) connected?
C)Is the monitor functioning correctly?
D)Is the OS installed correctly?

Question

Quizplus · Accepted Answer

When a user complaining that when they press the power button their PC nothing happens should first check that the computer's power supply is plugged into the wall.
Key Takeaway: All things being equal, the simplest answer must be the correct one. Since nothing in the computer seems to be receiving power, it seems reasonable to believe that power is not getting to the system. Hence, checking that the computer's power supply is plugged into the wall is a reasonable first technical support step. If the motherboard power connection were not plugged in, this would not stop power from travelling to other components (for instance, the fans). It doesn't matter if the OS is installed correctly when the system won't even boot in the first place.

A User Complains That When They Press the Power Button