How to Troubleshoot computer’s power supply

In this piece, we’ll look at How to Troubleshoot computer’s power supply, as well as some information and troubleshooting tips that can help. If your PC won’t start up, it’s likely that the problem is with the power supply. In earlier videos, we talked about a few signs that your power supply might be failing. In this one, we’ll go over some basic repair steps to try to find the problem and, hopefully, fix it.

A total loss of power is rarely the worst thing that can happen when a computer won’t turn on. It’s possible that your PC isn’t getting power because of a serious problem, but it’s not likely. There are many reasons why a desktop, laptop, or tablet computer might not turn on, so you need to go through a full repair process like the one below.

Ways to Troubleshoot computer’s power supply

Verify that the wall outlet is working correctly

1. Disconnect the computer from the wall outlet.
2. Connect another device to the wall outlet to verify if the wall outlet is working correctly.
3. Try another known-good wall outlet.

Check the power cable or AC adapter

1. Check for loose cables in the back of the desktop computer. For laptops, check for loose power cable that is connected to the AC adapter.
2. If your computer uses an AC adapter, verify that the LED on the AC adapter, or the plug is turned on. Ensure that you are using the original AC adapter that was shipped with the computer.
3. Connect a known-good power cable or AC adapter.

Perform a hard reset

1. Turn off the computer.
2. Disconnect the power cable (for desktop computers), or disconnect the AC adapter and remove the battery (for Dell laptops with removable battery).
3. Disconnect all devices such as USB drivers, printers, webcams, media cards (SD/xD), except the keyboard and mouse.
4. Press and hold the power button for 15 to 20 seconds to drain the residual power.
5. Connect the power cable (for desktop computers) or the AC adapter and battery (for laptops).
6. Restart the computer.

Bypass surge protectors, power strips, or docking stations

Your computer might not turn on if its surge protection, power strip, or docking station is broken. It’s important to figure out if the problem with the power comes from a faulty surge guard, power strip, or docking station.

1. Disconnect the computer from the surge protector, power strip, or docking station.
2. Connect the computer directly to a wall outlet. For laptops, bypass the docking station, and connect the AC adapter directly to the laptop.
3. Turn on the computer.

Run a hardware diagnostic

1. Press and hold the M key and power button on the keyboard.
2. Check the battery status LED:
   NOTE: To learn about the location of the battery status LED, see the User Manual of your Dell laptop.
   1. If an error is identified, the battery status LED turns amber. Contact Dell Technical Support for repair options.
   2. If there is no error, the battery status LED remains off.

Computer power source troubleshooting is the process of figuring out if the power unit is the cause of a computer problem. The power unit is one of the most important parts of a computer system. It gives all the other parts of the PC the power they need.