This document applies to HP Pavilion 500 desktop computers.
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Replacing the Power Supply in HP Pavilion 500 Desktop PCs
Before you begin
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Turn off the computer. Disconnect the Ethernet or modem cable. Disconnect the power cord.
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Transfer the computer to a clear, flat, stable work surface over a non-carpeted floor.
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HP strongly recommends the use of an anti-static wrist strap and a conductive foam pad when working on the computer.
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Do not remove a component from its protective packaging until you are ready to install it.
warning:The edges of metal panels can cut skin. Be careful not to slide skin along any interior metal edge of the computer.
caution:This product contains components that can be damaged by electrostatic discharge (ESD). To reduce the chance of ESD damage, work over a non-carpeted floor, use a static dissipative work surface (such as a conductive foam pad), and wear an ESD wrist strap connected to a grounded surface.
Video overview
View the following video before using the steps in this article.
note:For best quality on dial-up connections, wait until the video has fully loaded before viewing.
Removing the power supply
Use the steps in this section to remove the power supply.
warning:Make sure the computer is disconnected from power before starting.
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Step 1
Remove the side panel.
For more information about removing the side panel, refer to the HP support document Removing and Replacing the Side Panel.
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Step 2
Locate the power supply in the computer.
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Step 3
Remove the power supply connectors to the motherboard and other system components.
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Step 4
Detach all connectors from the rear of the optical drive to create clearance for removing the power supply.
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Step 5
Remove the four screws that connect the power supply to the computer.
Save the screws for power supply replacement.
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Step 6
Press the latch at the edge of the power supply inside the unit...
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...and slide the power supply inwards...
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...before pulling the power supply out of the computer.
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Replacing the power supply
Use the steps in this section to replace the power supply.
warning:Always replace the entire power supply. Never attempt to disassemble the power supply or work on components within the power supply unit.
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Step 1
Find the guides inside the computer that indicate the position of the power supply.
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Step 2
Find the latch inside the computer that helps secure the power supply to the computer.
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Step 3
To replace the power supply, align the power supply within the guides...
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...and then slide the power supply towards the rear of the unit until the latch snaps into place.
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Step 4
Replace the four screws to secure the power supply to the computer.
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Step 5
Reconnect the connectors to the optical drive.
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Step 6
Replace the power supply connectors to the motherboard and other system components.
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Step 7
Replace the side panel.
For more information about replacing the side panel, refer to the HP support document Removing and Replacing the Side Panel.
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Additional support options
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