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HP Pavilion Slimline s3100n Desktop PC support

Replacing the Power Supply in HP Pavilion Slimline s3000 and Compaq Presario S3000 Desktop PCs

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This document only pertains to HP Pavilion desktop computers with the following PC case:

Before you begin

  • Turn off the computer, disconnect all cables, and 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.
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.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. To remove the power supply, you must first remove the following components in the order listed below:

  1. PC cover, refer to Opening the PC Case .
  2. Fan assembly
  3. Pocket Media Drive bay
  4. Optical drive
  5. Hard disk drive and tray
  6. Drive tray
Step 2. Unhook the hard drive power supply cable from the metal cable guides.
Step 3. Remove the four screws that connect the power supply to the back of the computer.
Step 4. Pull the power supply toward the center of the computer, ...
... and then pull it out and away from the computer.
Step 5. Remove the power connector to the motherboard.

Replacing the power supply

Use the steps in this section to replace the power supply.
There are two slots on the side of the power supply ...
... that fit over two hooks on the inside of the computer.
There is also a small ledge inside the computer that fits under the power supply.
Step 1. To replace the power supply, tilt it back over the ledge, ...
... and then push the power supply until the hooks and slots connect and the power supply is secure.
Step 2. Attach the four screws that secure the power supply to the back of the computer.
Step 3. Connect the power connector to the motherboard.
Step 4. Replace the following components in the order listed below:

  1. Drive tray
  2. Hard disk drive and tray
  3. Optical drive
  4. Pocket Media Drive bay
  5. Fan assembly
  6. PC case, refer to Opening the PC Case .