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Installing a Desktop Power Supply

Installing a computer power supply sounds like a big deal. However, the truth is, it isn't that difficult. It is a moderately easy task. Often times, a faulty PC power supply is one of the things that prevents a computer from working correctly. Also, a power supply can be damaged from an electrical surge from a bad storm or power outage. Let's take a look at how to install a desktop power supply.

Unplug the power cord - Very Important!

First, unplug the power cord to prevent electrocution. You should unplug the PC anytime you are going to open up the computer and work inside it. For some brands, to get access to your power supply you only need to slide a button found at the rear. For other brands, you will need to unscrew the power supply from the computer case.

Remove the Old Power Supply

Next, remove the old power supply. To do this, unscrew the power supply, if applicable, and then disconnect all connections from the power supply to your motherboard, hard disks, DVD drives, etc. Make sure to keep the screws in a save place.

Install the New Power Supply

Get a new power supply with the same or very similar specs when compared to your old power supply. Place it into the same position as the old power supply. Be careful that it doesn't slide and damage any other parts. The fan on the power supply should be facing out of the computer tower. Next, grab the screws and fasten the new power supply into place.

Set the Voltage on the Power Supply

Next, it is time to set the voltage switch. People living in Europe will need to set the voltage switch to 220/230v. North America and Japan residents must set it at 110/115v. Hopefully this has been correctly set already, but it is a good idea to double-check this.

Reconnect All Cables

All cables must be connected properly and tight. Connect the large connector to the motherboard. The wide four-pin connectors should go to the hard drives. Most computers have another connector that connects the power supply to the motherboard to power the CPU. Make sure to connect this. Check one more time to ensure the connections are tight.

Test it out

Put the cover back on the case, plug the computer in, and turn on the computer. Hopefully the computer starts right up without any complications. If it doesn't work, make sure all connectors are tight and make sure you have the power supply switch turned on.



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