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Remove and Replace the System Board for HP Pavilion 15-abXXX Notebook PCs

This document applies to HP Pavilion 15-ab000 notebook computers.
HP Pavilion 15-ab000 notebook computer

Before you begin

  • Have available a pair of tweezers, a non-metallic prying tool, and 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.
  • After removing static sensitive components, place them in static dissipative bags. 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 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.
  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.
note:
The video and graphics in this article depict a specific configuration of notebook computer. These same removal and replacement procedures apply to all configurations of HP Pavilion 15-ab000 notebook computers.

Removing the system board

Follow the steps in this section to remove the other necessary components and then to remove the system board.
Step 1
First remove the battery, optical drive, rear corner covers, base enclosure, and wireless module.
For detailed instructions to remove the battery and display bezel, see the HP support document, Remove and Replace the Wireless Module.
Removing the base enclosure to gain access to the wireless  module and other components
Step 2
Now, remove the fan.
To remove the fan, disconnect the fan cable from its connector on the system board.
Disconnecting the fan cable
Step 3
Remove the two 3 mm P1 Phillips-head screws that secure the fan to the top cover and system board.
Screw locations
Step 4
Lift the fan off of the top cover and remove.
Lifting the fan off the top cover
Step 5
Now remove the system board.
Disconnect the speaker cable from its connector on the system board.
note:
Make careful note of the routing of all cables connected to the system board for later replacement.
Disconnecting the speaker cable
Step 6
Disconnect the power connector cable from its connector on the system board.
Disconnecting the power connector
Step 7
Disconnect the touchscreen cable from its connector on the system board.
Disconnecting the touchscreen cable
Step 8
Peel back the grounding tape that secures the display panel cable to the top cover.
Pulling back the grounding tape
Step 9
Using minimal force, lift the locking bar up on the display panel cable ZIF connector and disconnect the display panel cable from the system board.
Unlocking the display panel cable connector
Step 10
Using minimal force, lift the locking bar up on the optical drive connector cable ZIF connector and disconnect the optical drive connector ribbon cable from the system board.
Unlocking the optical drive  connector cable from the system board
Step 11
Using minimal force, lift the locking bar up on the keyboard light ZIF connector and disconnect the keyboard light ribbon cable from the system board.
Unlocking bar on the keyboard light ZIF connector
Step 12
Using minimal force, lift the locking bar up on the keyboard light ZIF connector and disconnect the keyboard light ribbon cable from the system board.
Unlocking bar on the keyboard light ZIF connector
Step 13
Using minimal force, lift the locking bar up on the touchpad board ZIF connector and disconnect the touchpad board ribbon cable from the system board.
Unlocking bar on the touchpad board ZIF connector
Step 14
Using minimal force, lift the locking bar up on the hard disk drive adapter ZIF connector and disconnect the hard disk drive adapter ribbon cable from the system board.
Unlocking bar on the hard disk drive adapter ZIF connector
Step 15
Remove the four 3 mm P1 Phillips-head screws that secure the system board to the top cover.
Location of the four screws that secure the system board to the top cover
Step 16
Lift the system board off of the alignment pins on the top cover and turn it over so that you have access to the USB board ZIF connector.
Lifting system board to gain access to the USB board connector
Step 17
Find the USB board ZIF connector...
The USB board ZIF connector
...and using minimal force, lift the locking bar up and disconnect the USB board ribbon cable from the system board.
Remove the system board.
Unlocking the system board ribbon cable

Replacing the system board

Use the steps in this section to replace the system board.
Step 1
Before installing a new system board, remove the following from the old system board and install on the new system board: heat sink, memory board(s), and the RTC battery.
System board showing the heat sink, the memory boards, and the RTC battery
Step 2
To replace the system board, first
On the top of the system board, insert the USB board ribbon cable into the USB board ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the USB board ribbon cable in its connector
Step 3
Turn the system board over and place it onto the alignment pins on the top cover.
  caution:
Ensure that none of the cables are being pinched between the system board and top cover.
Placing the system board onto the alignment pins
Step 4
Replace the four 3 mm P1 Phillips-head screws that secure the system board to the top cover.
The locations of the four screws that secure the system board to the top cover
Step 5
Insert the hard disk drive adapter ribbon cable into the hard disk drive adapter ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the disk drive adapter ribbon cable into its connector
Step 6
Insert the touchpad board ribbon cable into the touchpad board ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the touchpad ribbon cable into its connector
Step 7
Insert the keyboard light ribbon cable into the keyboard light ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the keyboard light ribbon cable into its connector
Step 8
Insert the keyboard ribbon cable into the keyboard ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the keyboard ribbon cable into its connector
Step 9
Insert the optical drive connector ribbon cable into the optical drive connector cable ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the optical drive ribbon cable into its connector
Step 10
Insert the display panel cable into the display panel cable ZIF connector on the system board and press the locking bar down to lock the cable into place.
Inserting the display panel cable into its connector
Step 11
Replace the grounding tape that secures the display panel cable to the top cover.
Replacing the grounding tape
Step 12
Connect the touchscreen cable into its connector on the system board.
Connecting the touchscreen cable
Step 13
Connect the power connector cable into its connector on the system board.
Connecting the power connector cable
Step 14
Connect the speaker cable into its connector on the system board.
note:
After system board replacement, be sure to complete post-installation tasks as required that might include: Verifying functionality of the notebook, Updating the BIOS, Updating DMI and other settings, Injecting Microsoft Windows 8 Digital Product Keys.
Connecting the speaker cable
Step 15
Place the fan into position on the top cover.
Placing the fan into position
Step 16
Replace the two 3 mm P1 Phillips-head screws that secure the fan to the system board and top cover.
Replacing the two screws that secure the fan to the system board
Step 17
Connect the fan cable into its connector on the system board.
Reconnecting the fan cable to its connector
Step 18
Replace the display panel bezel and the battery.
For detailed instructions to replace the wireless module, the base enclosure, rear corner covers, optical drive, and the battery, see HP support document, Remove and Replace the Wireless Module.
Replacing the base enclosure after reinstalling the other parts that were removed

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