In order to order the correct power supply he should check:
Wattage requirements, Number of hard drives, Video requirements, Form factor, will it fit the chassis.
The primary step is to turn on the computer. To do this, locate and press the power button. It is in a different place on every computer, but it has the universal power button symbols . Once turned on, your computer takes time before it will be ready to use.
To Set Up and Configure a New Computer:
Learn more about setting of computer:
brainly.com/question/22946942
#SPJ4