How to Install a Power Supply on an HP Pavilion
The power supply of a computer is a device which converts electricity from a normal socket into current that the computer can use safely without overloading it. Popular manufactured computers such as the HP Pavillion often come with power supplies that do are not meant to run the latest and most power hungry video cards and devices; if your HP Pavillion has several hardware upgrades, you should consider installing a newer power supply.
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Instructions
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1
Shut down your computer and unplug all cords.
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2
Open the computer case by unscrewing the left side panel. Depending on your computer model, there may be an easy release system to take off the side panel.
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3
Unplug all power cables leading from the old power supply to your system's devices. The power supply will have a bundle of cables plugged into the motherboard, each disk drive, hard drive and certain peripheral devices, such as fans or video cards. As you unplug the cords, it is a good idea to write down how many cords you unplugged and which devices you unplugged, so that you remember to give them all power with the new power supply.
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4
Unscrew the old power supply and remove it from the case. Power supplies are typically screwed in place by four mounting screws on the back of the computer case, in a rectangular pattern around the power plug.
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5
Mount the new power supply in the open power supply bay. Reverse the process of Step 4 by sliding the new power supply in the space you created, and screwing it in place with the new mounting screws the power supply came with. Save the old screws as replacements.
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6
Plug in your system's devices with the bundle of power cables provided by the new power supply. If you made a list during Step 3, you should be able to fairly easily locate and connect all the devices you unplugged.
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7
Screw the case shut, and plug the cables back into the case.
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Tips & Warnings
* Power supplies are prone to overheating and burning if they are overtaxed. Installing a power supply which has plenty of excess power output can help insure your system will not cause the power supply to fail.
