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Remove and Replace the Power Supply on the HP OMEN 880 Gaming PC

This document applies to HP OMEN 880 Gaming PCs.
HP OMEN 880 Gaming PC
Before you begin
  • Have available a Phillips-head screwdriver.
  • 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:
Make sure the computer is disconnected from power before starting. Before starting, power off the computer and wait for components to cool before starting these procedures.
  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.
  caution:
Procedures in this document are provided by HP for qualified service agents and as a courtesy to its customers. Servicing internal components increases the risk of damaging the computer which might not be covered under warranty. Understand the risk and refer to the product's warranty before attempting to service the computer.
Video overview
View the following video before using the steps in this article.
Removing the power supply
To remove the power supply, use the following instructions:
Step 1
Remove the left side cover.
Removing the left side cover
Step 2
Remove the right side cover.
Removing the right side cover
Step 3
Detach the two power supply connectors from the top corner of the motherboard.
Detaching the power supply connectors
Step 4
Detach the large power supply connector from the center of the motherboard.
Detaching the larger power supply connector
Step 5
Detach the power connector or connectors from all internal hard drives.
Power connectors to detach
Step 6
In models with an upper internal hard drive cage, pull the upper hard drive power connectors out of the cable guides on the bottom of the upper cage.
Upper hard drive power connector cable guides
Step 7
In computers with an upper external hard drive bay, find and detach the power supply junction cables to the external hard drive power cables.
Finding and disconnecting the power supply junction cables
Step 8
Detach the power connector or connectors from the graphics card or cards installed in the unit.
Graphics card power connector
Step 9
Remove the graphics card power cables from the cable guide on the top of the bottom internal hard drive cage.
Removing the power card cables from the cable guide
Step 10
Snip the zip tie securing the graphics power cables to the side of the bottom internal drive cage.
Snipping the zip tie
Step 11
Detach the hard drive SATA data cables from the motherboard that connect near the large motherboard power supply connector to allow the large power supply cable to be pulled to the right side of the unit.
Hard drive SATA data cables
Step 12
Detach the optical drive power connector from the optical drive on the right side of the unit.
Optical drive power connector
Step 13
Pull the top motherboard power supply cables to the right side of the unit through their cable access hole.
Pulling the power supply cables through their access hole
Step 14
Detach the optical drive data connector from the optical drive if an optical drive is installed for access for the large power supply connector.
Detaching the optical drive data connector
Step 15
Detach the large red USB connector from the motherboard to make room for the large power supply connector if there is a long graphics card installed.
Detaching the large, red USB connector
Step 16
Pull the large motherboard power supply connector to the right side of the computer through the central cable access hole.
Pulling the power supply connector out of the unit
Step 17
Pull the upper hard drive bay power cables to the right side of the unit through the central access hole.
Pulling the upper hard drive bay power cable through the central access hole
Step 18
Pull the bottom internal hard drive power cables to the right side of the unit through their bottom access hole.
Puling the bottom internal hard drive power cables through the bottom access hole
Step 19
Pull the top motherboard power supply cables out of their cable guides on the right side of the unit that lead to the bottom of the unit.
Pulling the top motherboard power supply cable out of their cable guides
Step 20
Pull the optical drive and upper hard drive power connectors out of their cable guides on the right side. Be careful of the top I/O connectors that share the same guides.
Pulling the optical drive and upper hard drive power connectors out of their cable guides
Step 21
Pull the large motherboard power cable out of its cable guide at the bottom right side of the unit.
Pulling the motherboard power cable out of its guide
Step 22
Detach the four Philips #2 screws that secure the power supply to the rear of the computer.
Four screws that secure the power supply to the rear of the unit
Step 23
Slide the power supply slightly to the inside of the computer...
Sliding the power supply to the inside of the computer
...then pull the power supply out and carefully feed the power supply connectors through the bottom access hole from the right to the left inside part of the unit to fully remove the power supply.
Pulling the power supply out
Replacing the power supply
Use the following instructions to replace the power supply:
Step 1
There are guides on the inside chassis wall to assist in correct placement of the power supply.
Guides on the inside of the chassis
Step 2
To replace the power supply, first feed the power supply connectors from the left to the right side of the computer through their bottom access hole.
Feeding the power supply connectors from the left to the right side of the unit
Step 3
Align the power supply within its guides, then slide the power supply to the rear of the computer.
Sliding the power supply in the rear of the unit
Step 4
Secure the power supply to the rear of the unit with its four Philips #2 screws
The four screw locations that secure the power supply
Step 5
Replace the large motherboard power supply connector into its large cable guide at the bottom right side of the unit.
Replacing the mother board power supply connector into its large cable guide
Step 6
Replace the optical drive and upper hard drive power connectors into their cable guides on the right side of the computer.
  note:
See video at the top of this document for placement of all cables into correct guides.
Replacing the optical drive and upper hard drive power connectors into their cable guides on the right side of the unit
Step 7
Replace the top motherboard power cables into their guides leading to the top right side of the computer.
Motherboard power cables placed in their guides
Step 8
Feed the bottom internal hard drive power connectors back to the main cavity of the unit through their bottom access hole.
Feeding the bottom internal hard drive power connectors through the access hole
Step 9
Feed the upper hard drive power connectors back to the main cavity of the unit through the central access hole.
Feeding the upper hard drive power connectors through the central access hole
Step 10
Feed the large central motherboard power supply connector back to the main cavity through the central access hole.
Feeding the large central motherboard power supply connector  through the central access hole
Step 11
Replace the red USB connector to the motherboard if it was detached to make room for the large power supply motherboard connector.
USB connector connected to the motherboard
Step 12
Replace the optical drive data connector if it was detached from the optical drive.
Optical drive data connector is reconnected
Step 13
Feed the top motherboard power supply connectors back to the main cavity of the computer through their access hole.
Feeding the top motherboard power supply connectors through their access hole
Step 14
Replace the power connector to the optical drive if an optical drive is installed in the unit.
Power connector to the optical drive
Step 15
Replace the hard drive SATA connectors to the motherboard near the large power connector header.
Hard drive SATA connector
Step 16
Secure the graphics card power cables to the side of the bottom internal hard drive cage with a zip tie.
Securing the graphics card power cables to the side of the bottom internal hard drive cage with a zip tie
Step 17
Place the graphics card power cables into the cable guide on the top of the bottom internal hard drive cage.
Placing the graphics card power cables into the cable guide
Step 18
Reconnect the graphics card cables to the graphics card or cards.
Graphics card cable connected to the graphics card
Step 19
If the unit has an upper external hard drive cage, reconnect the power junction cables to the external hard drive power cables.
Reconnecting  the power junction cables to the external hard drive power cables
Step 20
If the unit has an upper internal hard drive cage, place the upper hard drive power cables into the cable guides on the upper hard drive cage.
The upper hard drive power cables in the cable guides, cable guides pointed to
Step 21
Replace all connectors to all internal hard drives.
Connectors to internal hard drives
Step 22
Replace the large power supply connector to the motherboard.
The large power supply connector connected to the motherboard
Step 23
Replace the two smaller motherboard power supply connectors at the top edge of the motherboard.
The two smaller motherboard power supply connectors at the top edge of the motherboard
Step 24
Replace the right side cover.
Replacing the right side cover
Step 25
Replace the left side cover.
Replacing the left side cover

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