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Before you begin
- Turn off the computer. Disconnect the Ethernet or modem cable. Disconnect the power cord.
- Transfer the computer to a clear, flat, stable work surface over a non-carpeted floor.
- HP strongly recommends the use of an anti-static wrist strap and a conductive foam pad when working on the computer.
- 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 noncarpeted 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.
| 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 . |  |
| Step 2 Detach all power connectors to the motherboard,... |  |
| all optical drives,... |  |
| ...and hard drives. |  |
| Step 3 Remove the four screws that connect the power supply to the computer. Save the screws for power supply replacement. |  |
| Step 4 Press the latch at the bottom of the power supply, and... |  |
| ...pull the power supply into and out of the computer. |  |
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.
| Step 1 Find the latch, guide, and ledge inside the computer that help secure the power supply. |  1 - Latch 2 - Guide 3 - Ledge |
| Step 2 Align the power supply with the ledge and guide, and... |  |
| ...slide it back until it snaps into place. |  |
| Step 3 Replace the four screws that connect the power supply to the computer. | |
| Step 4 Reconnect all power connectors to the motherboard, optical drives, and hard drives. | |
| Step 5 Replace the side panel. For more information about replacing the side panel, refer to the HP support document Removing and Replacing the Side Panel . |  |
