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Your computer has just abruptly shut off, and pressing the power button doesn’t restart the system. There are no fans spinning or lights on, and no messages appear on the display. Which of these would be the most likely cause of this issue?

A) The BIOS is configured with a startup password

B) The power supply is faulty

C) The LCD display backlight has failed

D) The master boot record is corrupted

E) You really didn’t need to upgrade that garrison

The answer: B) The power supply is faulty

If you’re not getting any lights or spinning fans, then the motherboard isn’t getting any power. At this point, you would troubleshoot the power going to the motherboard with your multimeter.

Want to know more? Watch “Troubleshooting Common Hardware Problems.”

When hardware fails, a number of messages and errors can occur during boot and in the operating system. In this video, you’ll learn how to troubleshoot lockups, boot problems, overheating, random reboots, and many other problems.