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Replacing the Power Supply in HP Pavilion Elite e9000, HPE-100 Series Desktop PCs

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This document pertains only to HP desktop computers with the following computer case:
Image of the computer

Before you begin

  • You need a flathead screwdriver.
  • Remove the Pocket Media Drive, if it is present. Remove the Personal Media Drive, if it is present.
  • Turn off the computer, and then disconnect all cables. Disconnect the Ethernet or modem cable before disconnecting the power cord.
  • Move 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.
  • Because you must install the replacement power supply in the same orientation as the original part, write down the orientation of the power supply onto a piece of paper; high-connector or low-connector.
    Figure 1: The high-connector power supply has the power connector near the top of the computer
    Image of a high-connector power supply
    Figure 2: The low-connector power supply has the power connector near the add-in cards
    Image of a low-connector power supply
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.

Replacing the Power Supply

Use the steps in this section to replace a power supply.
WARNING:Make sure the computer is disconnected from power before starting. Do not attempt to disassemble or repair the power supply, or this could cause personal injury and equipment damage. Always replace the entire power supply.
Step 1

Remove the side panel.

For more information about removing the side panel, refer to the HP support document Opening the PC Case .
Image of pulling the side panel toward the back of the computer to release it
Step 2

Remove the front panel.

For more information about removing the front panel, refer to the HP support document Removing the Front Cover .
Image of lifting the front panel from the computer
Step 3

Lay the computer on the side.
Image of laying the computer down
Step 4

Remove the hard disk drive cage.

For more information about removing the hard disk drive cage, refer to the HP support document Adding or Replacing a Hard Drive .
Image of the hard disk drive cage in the computer
Step 5

Place the bottom of the computer toward you and locate the power supply inside the computer.
Image of the power supply inside the computer
Step 6

Follow a power supply cable to its connection to a system component. Remember the location and type of connection. To help you remember, you may want to write a simple diagram onto a piece of paper.

NOTE:Plugs on the power supply are keyed and can be inserted only when aligned properly with the component connector. In addition, some power connectors have a latch that must be pressed or squeezed to release the cable connector from the socket.
Image of tracing the power supply cable and noting the location on a piece of paper
Step 7

After you know the location and type of power connection, disconnect the cable.
Image of the main power connector on the motherboard
Step 8

Continue finding and disconnecting power cable connections until all power connections have been unplugged.

NOTE:The hard disk drive cables were disconnected in step 4.
Image of the power supply cables locations for the system components
1 - Optical disc drives
2 - Motherboard main power
3 - Motherboard fan
4 - Expansion cards
5 - PMD cable connection
Step 9

Remove the four screws that secure the power supply to the back of the computer.
Image of the screws that secure the high-connector power supply
Step 10

Locate the power supply latch at the base of the power supply inside the computer.
Image of the power supply latch at the base of the supply
Step 11

Press the power supply latch (1), and then slide the power supply (2) to the left to release it.
Image of pressing the latch and sliding the power supply into the computer
Step 12

Move the power supply to the left and then down, freeing it from the computer.
Image of moving the power supply
Step 13

Lift the power supply out of the computer.
Image of lifting a power supply out of the computer
Step 14

Lower the replacement power supply into the computer. (The illustration shows a high-connector power supply installation.)

NOTE:You must install the replacement power supply in the same orientation as the original unit; make sure the orientation of your power supply before inserting it into the computer. Refer to the orientation that was written down earlier if necessary; either high-connector or low-connector type.
Image of inserting a high-connector power supply into the computer
Step 15

Align the power supply in the opening in the back of the computer.
Image of the power supply aligned in the opening in the back of the computer
Step 16

Slide the power supply to the right (toward the back of the computer) until the latch locks it into place.
Image of sliding the power supply into the opening in the back of the computer
Step 17

Insert and tighten the four screws that secure the power supply to the back of the computer.
Image of the screws on a high-connector power supply
Step 18

Route the power supply cables to each of the system components, and then connect them.

NOTE:The hard disk drive cables are connected in the next step.


NOTE:Your computer may not use all the connectors on the power supply. Be sure to check your record and connect a power supply plug to each system component.
Image of the power supply cables locations for the system components
1 - Optical disc drives
2 - Motherboard main power
3 - Motherboard fan
4 - Expansion cards
5 - PMD cable connection
Step 19

Connect the cables and replace the hard disk drive cage.

For more information about replacing the hard disk drive cage, refer to the HP support document Adding or Replacing a Hard Drive .
Image of connecting the cables to the drive in the hard disk drive cage
Step 20

Set the computer upright.
Image of setting the computer upright
Step 21

Replace the front panel.

For more information about replacing the front panel, refer to the HP support document Removing the Front Cover .
Image of swinging the right side of the front panel toward the computer
Step 22

Replace the side panel.

For more information, refer to the HP support document Opening the PC Case .
Image of the side panel positioned over the side of the computer

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