Start-up process of a desktop computers

1. Make sure all the cords of the monitor, CPU, keyboard, and mouse are connected in the right places.
2. Plug the power cords of the monitor and CPU to the AVR.
3. Plug the AVR cord to an outlet.
4. Switch on the AVR. You will see a red light button after you switch on the AVR. 
5. Switch on the computer.
6. Switch on the monitor.