On this section will be testing the Computer Power supply as well a few extra steps on the Laptop charger to see if it’s functioning correctly as it should be. Power supply on computer tends to breakdown, this could be do to power supply over heating , not having enough power or blown out for whatever reason. Before we continue, we want to make sure the switch on the Power Supply it’s turn on ( See Picture ), Some some computers power supply have a switch in the back to turn off the computer when power button it’s not working . Make sure its turn on , if it was off, then hit the power button to see if your computer turns on, if it does not turn on, then continue reading. However if your computer turns on after switching the switch on but nothing display, then this is a different issue. May want to check our section on how to troubleshoot fix blank screen .
Laptops users, Some chargers have a LED Light on them to indicate it’s receiving power as I mention in my earlier step, if it does have a LED light and it’s on then continue reading, However, if it does have one but it’s not lit up, Then your charger may be defective and will need to be replace. If your charger does not have a LED indicator on it but it’s working fine, Then plug into your laptop, As with any laptop, when you plug the power charger to it, a LED light should light up on the laptop itself. Picture below for reference .
If your laptops power LED lights up, but nothing happen when powering on, then your laptop power button most likely will have to be replace. Have a Technician take a look at it to confirm.
For Technical users. or if you are up for the challenge. This next step will require opening your computer case to expose the power supply cables which we are going to run a test on. Make sure to unplug the power cable from power supply. As you could see on the picture , we are going to have to get our hand on the 20/24 pin cable which should be plug into the motherboard .
Once we have the cable in question in hand, will try to make a connection with 2 wires, if you look closely into the wires, you will see a few colors, there are 2 we are going to focus on for this test, A black one, which ever one it’s available and the green you see towards your right . We want to find a way to connect this 2 wires together. You could view a quick video about this procedure which should be displaying . Once we have those cable making contact , we are going to plug the power cable into the PSU and see if it turns on, If the power supply turns on, Then continue the next step. If it does not turn on, then you have a damage power which will need to be replace.