You are an IT technician for your company. One of the employees has a computer that continually reboots when it's powered on$.$ He has asked you to fix it$.$ You suspect that the power supply may be failing.

Which of the following is the BEST initial step to determine whether the power supply is causing the reboots?

answer

Replace the power supply.

Use a multimeter to test the power supply.

Listen for POST code beeps to determine the error's cause.

Verify that the fan on the power supply is spinning.