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Course Content

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Diagnose and Resolve Issues related to PC - 1

In this video series of four parts, we are going to first Diagnose the problem in our PC and then try to resolve it using different ways. Basically we are going to cover different types of troubleshoots and some practical knowledge about how to overcome solvable PC problems.

Troubleshooting NO Power Issue :-

- Firstly, Identify power supply issues.
• When you turn on a computer and nothing shows up on the screen, we say it is a 'dead' computer.
• However if you see something happening on the screen, we say that the computer is turning on'.
• Issues which occur due to problem in power supply are commonly mistaken as other technical issues in the computer.
• It is important to find out the exact cause of the issue before troubleshooting it.
• Plug the power cord of the computer in a power socket.
• Press the power button on the front of the computer. Check if the small light getting on or not.
• The easiest way is to check if the fan of the SMPS (on the back) is rotating.
• If the fan is rotating, then it means the computer is receiving power.

- If still there is no result shown then basically we'll follow & check for the following problems :
• Power cord not connected properly.
• Faulty power supply source.
• Third party hardware.
• Defective power button of cabinet.
• Faulty power supply unit.
• Motherboard not functioning properly.

- To do things if Power Cord is not connected properly :
• Check if the power cord is connected properly to the wall socket and the back of the computer.
• Disconnect and reconnect both ends of the power cord to make sure the cable's not loose.
• Unplug all external devices form the PC, such as printers and scanners except the monitor.
• If the computer powers on without the devices, connect back the devices one by one until you identify the device with problem.

- To do things if there is Faulty Power Supply source :
• Plug in a working electronic device into the same power socket to see if it is working properly
• Check for the power supply cord with the help of a Multi-Meter Tester (Continuity Test)
• Check if the SMPS input voltage is compatible with source power supply voltage
• If there is no power supply from the cord, then it is a faulty power card which should be replaced

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