A Power Supply Unit is a main unit which supplies required power to the connected peripherals. It takes in AC current as input and gives DC current as output in the required voltage as required by the peripherals.
A PSU when connected to the mother board switches ON automatically when the power button is pressed. A signal from the motherboard is sent to the PSU and then the PSU supplies power back to all the unit including mother board itself.
Many may wonder how to start a PSU without the motherboard. As PSU may cause problems over long run, it becomes necessary to know how to start the PSU without motherboard to ensure that it’s working fine.
Important: Please be aware of the Problems of Electrostatic Discharge (ESD) to the internal components of your computer and steps to prevent it.
This DIY guide deals how to start a PSU with a simple Paper Clip. Yes with a Paper Clip!
1. A Paper Clip
2. A screw driver (To remove the PSU unit from the computer case)
3. A Power Supply
4. A Power Cable
Here’s how to do it:
Opening the computer case involves removing the side panel of the computer cabinet.
Remove the PSU after opening your computer case. This can be done by removing the screws that hold the PSU.
But before removing the screws, you need to remove all the connections from the PSU to other peripherals.
Note: All the connectors are designed in a way that it can be connected in a particular slot and also it can be connected in a correct way. So, don’t worry about how to connect back the peripherals to the PSU.
Some connectors will have a clip to hold the connection. So you need to press the clip and remove the connection.
Note: This test can be done without removing the PSU from the computer case. But it is highly recommended to remove the PSU before starting the process. To perform this test without removing the power supply, then remove the connections from the PSU to all other peripherals and continue the testing.
2. Plug in the power supply to the wall socket and connect the other end firmly into the power supply.
Note: Most Power supply unit will have a switch in it, to regulate the power supply. Make sure that is flipped to 1, not in 0.
3. Now take a paper clip and bent it in a U shape as shown in the image.