Hp Elitebook 840 G1 Motherboard Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          20 minutes

Sections

Battery
3 steps
RAM
3 steps
Hard Drive
2 steps
Heatsink and Fan
8 steps
Motherboard
10 steps

Flags

Needs More Images

A few more images would make this guide’s procedures crystal clear.

BackHP Elitebook 840 G1
Full Screen
Options
History
Save to Favorites
Download PDF
Edit
Translate
Get Shareable Link
Embed This Guide
Notify Me of Changes
Stop Notifications

Introduction

What you need

Step 1

              Battery

Working on your device while it is turned on may result in electric shock. Make sure to shut down and unplug your device before you begin.
Slide the latch, to the right, away from the lock symbol.
Slide the cover away from the latch to remove it.

Working on your device while it is turned on may result in electric shock. Make sure to shut down and unplug your device before you begin.

Slide the latch, to the right, away from the lock symbol.

Slide the cover away from the latch to remove it.

1024

Step 2

Once the cover is removed you will be able to see the battery and the two latches that hold it in place.
The two latches should be pulled back, one of which is spring loaded and must be held in place in order to remove the battery.

Once the cover is removed you will be able to see the battery and the two latches that hold it in place.

The two latches should be pulled back, one of which is spring loaded and must be held in place in order to remove the battery.

Step 3

Battery should easily be lifted up and out.

Battery should easily be lifted up and out.

Step 4

RAM

Identify the RAM and the pull tabs that will be used in the next step.
Always use an anti-static wrist strap when working on a computer.

Identify the RAM and the pull tabs that will be used in the next step.

Always use an anti-static wrist strap when working on a computer.

Step 5

Pull back the two tabs on either side of the RAM this will allow the RAM to be removed.
When handling a memory module, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.

Pull back the two tabs on either side of the RAM this will allow the RAM to be removed.

When handling a memory module, use care to prevent touching the memory chips on the board. Touching the memory chips could damage or destroy the memory.

Step 6

Pull the RAM stick gently out and up once the tabs have been pulled to the side.

Pull the RAM stick gently out and up once the tabs have been pulled to the side.

Step 7

              Hard Drive

Loosen the four Phillips screws securing the hard drive.
These screws will stay captive to the plastic hard drive bracket.

Loosen the four Phillips screws securing the hard drive.

These screws will stay captive to the plastic hard drive bracket.

Step 8

Grab the pull tab on the hard drives plastic casing and pull it out and to the side.
Make sure all screws have been properly loosened and are no longer connected at the bottom before doing this step.
Remove the 2.5" hard drive from the plastic bracket.

Grab the pull tab on the hard drives plastic casing and pull it out and to the side.

Make sure all screws have been properly loosened and are no longer connected at the bottom before doing this step.

Remove the 2.5" hard drive from the plastic bracket.

Step 9

              Heatsink and Fan

In order to take out the fan and heatsink the plastic cover must first be taken off.
Remove the eight 2 mm Phillips #1 screws.

In order to take out the fan and heatsink the plastic cover must first be taken off.

Remove the eight 2 mm Phillips #1 screws.

Step 10

Remove SD card by sliding it out.

Remove SD card by sliding it out.

Step 11

Remove the thirteen 6 mm Torx T8 screws.
Some screws have plastic covers over them that need to be pried out before the screws can be removed.
Remove the five Torx M2.5x5 screws.
Remove the single 7 mm Phillips #1 screw.
Loosen the two Phillips #1 screws. These screws will remain captive to the device.

Remove the thirteen 6 mm Torx T8 screws.

Some screws have plastic covers over them that need to be pried out before the screws can be removed.

Remove the five Torx M2.5x5 screws.

Remove the single 7 mm Phillips #1 screw.

Loosen the two Phillips #1 screws. These screws will remain captive to the device.

Step 12

Using the plastic opening tools, remove the plastic cover by beginning at one of the corners and prying it up.

Using the plastic opening tools, remove the plastic cover by beginning at one of the corners and prying it up.

Step 13

Use the plastic opening tools to remove the keyboard, starting at one of the top corners. You need to lift the top side and then takeing it out moving the keyboard towards the screen.
Once the keyboard is removed, detach the ribbons connecting the keyboard to the laptop by prying the small tab and sliding the ribbon out.

Use the plastic opening tools to remove the keyboard, starting at one of the top corners. You need to lift the top side and then takeing it out moving the keyboard towards the screen.

Once the keyboard is removed, detach the ribbons connecting the keyboard to the laptop by prying the small tab and sliding the ribbon out.

Step 14

Loosen the six Phillips #1 screws. These will remain captive to the heatsink.

Loosen the six Phillips #1 screws. These will remain captive to the heatsink.

Step 15

Use the plastic opening tools to remove the tape covering the wires connected from the fan to the motherboard.
Disconnect the fan by sliding the wire out.

Use the plastic opening tools to remove the tape covering the wires connected from the fan to the motherboard.

Disconnect the fan by sliding the wire out.

Step 16

Remove the fan by lifting it up and sliding it out.
Remove the heat sink by lifting it up and sliding it out.

Remove the fan by lifting it up and sliding it out.

Remove the heat sink by lifting it up and sliding it out.

Step 17

              Motherboard

Disconnect the two antenna cables.
They are labeled as 1 and 2 and should go back to the same place when put back.

Disconnect the two antenna cables.

They are labeled as 1 and 2 and should go back to the same place when put back.

Step 18

Remove the single 3 mm Phillips #1 screw securing the wireless card.

Remove the single 3 mm Phillips #1 screw securing the wireless card.

Step 19

Remove the three 4 mm Phillips #1 screws.
Remove the single 2 mm Phillips #1 screw.

Remove the three 4 mm Phillips #1 screws.

Remove the single 2 mm Phillips #1 screw.

Step 20

Remove both ribbons marked.
Before removing the ribbon pry the small black tabs that seat them.

Remove both ribbons marked.

Before removing the ribbon pry the small black tabs that seat them.

Step 21

Pry the grey plastic tab from the orange tab to free it.
Repeat for the clear plastic tab.

Pry the grey plastic tab from the orange tab to free it.

Repeat for the clear plastic tab.

Step 22

Disconnect the cables by taking off the tape and getting them out from under the plastic.

Disconnect the cables by taking off the tape and getting them out from under the plastic.

Step 23

Remove ribbon cable connected to the motherboard.
Before removing ribbon pry the small white tab that seats the ribbon.

Remove ribbon cable connected to the motherboard.

Before removing ribbon pry the small white tab that seats the ribbon.

Step 24

Disconnect plastic port.

Disconnect plastic port.

Step 25

Remove black tape near the edge of the motherboard.

Remove black tape near the edge of the motherboard.

Step 26

The motherboard can now be lifted up easily, if any snagging occurs make sure everything was disconnected properly before continuing.
When reassembly ensure nothing is stuck under the motherboard.

The motherboard can now be lifted up easily, if any snagging occurs make sure everything was disconnected properly before continuing.

When reassembly ensure nothing is stuck under the motherboard.

To reassemble your device, follow these instructions in reverse order.

Cancel: I did not complete this guide.

                                                                                      16 other people completed this guide.

Author

                                      with 3 other contributors

                    Ashley Williams

Member since: 08/27/2015

2,266 Reputation

                                      5 Guides authored                  



                       Badges:
                       19







                                                        +16 more badges

Team

                       USF Tampa, Team 5-3, Blackwell Fall 2015                        

                                                  Member of USF Tampa, Team 5-3, Blackwell Fall 2015 



                    USFT-BLACKWELL-F15S5G3                     


                                            4 Members                     


                                            19 Guides authored

Siyamand Rashid - Apr 7, 2016

thanks a lot for this good article … could you please advice where to buy the replacement motherboard online ?

many thanks again

Baba Callum - Feb 14, 2020

Rusterholtz - Nov 19, 2018

Does someone know if we can replace a 745 g2 motherboard by another model like a 820 g2 or something like this ? Tks.

745 G2 can only be replaced with 840 G2.

While 725 G2 can only be replaced by 820 G2

Heritier Habumugisha - Dec 22, 2022

How can i find this mother card

Needs More Images#

Introduction#

What you need#

Team#

Needs More Images

Introduction

What you need

Team