Dell Inspiron 14 5447 Motherboard Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          25 minutes

Sections

Battery
4 steps
Keyboard
3 steps
Wi-Fi Card
3 steps
Fan
6 steps
Motherboard
12 steps

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Introduction

Before beginning this guide, make sure that your computer is OFF, and that the components in the prerequisite replacement guides are removed. The tools needed to remove the motherboard are a Philips head screwdriver, tweezers, and a spudger (or any small prying tool).

What you need

Step 1

              Battery

Flip the laptop upside down to access the battery.

Flip the laptop upside down to access the battery.

1024

Step 2

Remove the two black 5.70mm Phillips#0 screws on the case’s back.
Insert a plastic opening tool into the small slit, centered between the removed screws, and pry open the back cover

Remove the two black 5.70mm Phillips#0 screws on the case’s back.

Insert a plastic opening tool into the small slit, centered between the removed screws, and pry open the back cover

Step 3

Remove the two 5.70mm Phillips #0 screws that secure the battery in place on its left side .
Treat the battery with care - puncturing or bending may cause damage to the battery and may result in fire or injury.

Remove the two 5.70mm Phillips #0 screws that secure the battery in place on its left side .

Treat the battery with care - puncturing or bending may cause damage to the battery and may result in fire or injury.

Step 4

Use the black, plastic flap on the left side to pull the battery out.
Slowly lift the flap up and the battery should slide out.

Use the black, plastic flap on the left side to pull the battery out.

Slowly lift the flap up and the battery should slide out.

Step 5

              Keyboard

Locate the five small slits at the top of the keyboard.
Using a plastic opening tool, carefully pry each slit to loosen the keyboard.
Slide the keyboard towards the screen at an angle for removal.
Be cautious when lifting the keyboard because there are secured, fragile wires connected underneath it.

Locate the five small slits at the top of the keyboard.

Using a plastic opening tool, carefully pry each slit to loosen the keyboard.

Slide the keyboard towards the screen at an angle for removal.

Be cautious when lifting the keyboard because there are secured, fragile wires connected underneath it.

Step 6

If the keyboard is not lifted with caution, damage to the cables may occur.
Lift the keyboard and flip it onto the mouse-pad.

If the keyboard is not lifted with caution, damage to the cables may occur.

Lift the keyboard and flip it onto the mouse-pad.

Step 7

Locate the two cable connectors. These connectors secure the cables to the laptop with small, securing flaps.
To release the cables, take each flap and flip them upwards to the unlocking position.
Pull both the cables out after unlocking and set aside the keyboard.

Locate the two cable connectors. These connectors secure the cables to the laptop with small, securing flaps.

To release the cables, take each flap and flip them upwards to the unlocking position.

Pull both the cables out after unlocking and set aside the keyboard.

Step 8

              Wi-Fi Card

Locate the Wifi card on the top left of the laptop.
Use the tweezers to release the black and white cables.

Locate the Wifi card on the top left of the laptop.

Use the tweezers to release the black and white cables.

Step 9

Remove one silver 2.9mm Phillips #1 screw which secures the WiFi card.

Remove one silver 2.9mm Phillips #1 screw which secures the WiFi card.

Step 10

The Wi-Fi card should slide out of the black socket.
Use tweezers to push the white part of the Wi-Fi card up towards the top of the device to remove.
Remove the card with the tweezers.

The Wi-Fi card should slide out of the black socket.

Use tweezers to push the white part of the Wi-Fi card up towards the top of the device to remove.

Remove the card with the tweezers.

Step 11

Fan

Locate the fan system in the top right corner.

Locate the fan system in the top right corner.

Step 12

Look along the wide line of white cable until you find the tab insert.
Remove the thick white cable crossing over the fan, using the blue spudger shown, to flip the securing flap holding down the cable.

Look along the wide line of white cable until you find the tab insert.

Remove the thick white cable crossing over the fan, using the blue spudger shown, to flip the securing flap holding down the cable.

Step 13

Move the cable over to the side to reveal the fan screws.
Remove the two black 5.70 mm screws from the fan.

Move the cable over to the side to reveal the fan screws.

Remove the two black 5.70 mm screws from the fan.

Step 14

Use tweezers to remove the small cable attached to the fan.

Use tweezers to remove the small cable attached to the fan.

Step 15

Using the opening tool, pry the fan out.
Remove the fan slowly to prevent damage to any wires or cables connected to the device.

Using the opening tool, pry the fan out.

Remove the fan slowly to prevent damage to any wires or cables connected to the device.

Step 16

Now that the fan is removed, be sure to clean the area under the fan to prevent overheating.

Now that the fan is removed, be sure to clean the area under the fan to prevent overheating.

Step 17

              Motherboard

Locate the Toshiba hard drive.

Locate the Toshiba hard drive.

Step 18

Locate and unscrew the black (5.70mm) screws on the top left and bottom right of the Hard drive.
Lift up the hard drive from the right side with caution as wires are connected to this unit.
Holding the right side the hard drive and and with the other hand on the black connector (left side). Pull apart from each other carefully.

Locate and unscrew the black (5.70mm) screws on the top left and bottom right of the Hard drive.

Lift up the hard drive from the right side with caution as wires are connected to this unit.

Holding the right side the hard drive and and with the other hand on the black connector (left side). Pull apart from each other carefully.

Step 19

Unscrew the five (5.70 mm) screws in the gray plating
Unscrew the two black (2.50mm) screws underneath the area where the battery would be.

Unscrew the five (5.70 mm) screws in the gray plating

Unscrew the two black (2.50mm) screws underneath the area where the battery would be.

Step 20

Locate the two black (8.70mm) screws at the laptop’s hinges and unscrew.

Locate the two black (8.70mm) screws at the laptop’s hinges and unscrew.

Step 21

Locate the black plug connector next to the fan.
Using tweezers, gently pull the metallic part of the plug from its input.
Remove and loosen the wire from the gray plating.

Locate the black plug connector next to the fan.

Using tweezers, gently pull the metallic part of the plug from its input.

Remove and loosen the wire from the gray plating.

Step 22

Flip the laptop back over and open it.
Unscrew the six black (5.70 mm) screws from under the keyboard.
Locate the ends of the white cables and flip the white securing flaps upwards.
Remove the cables from inside the connectors.

Flip the laptop back over and open it.

Unscrew the six black (5.70 mm) screws from under the keyboard.

Locate the ends of the white cables and flip the white securing flaps upwards.

Remove the cables from inside the connectors.

Step 23

Using the blue spudger pry the gray plastic plating off. Be mindful of the openings along the top side between the hinges.
The gray plating cover is secured extremely tightly. Be careful not to break any parts of it as you pry. Note also that the black parts which serve to cover the hinges are also a part of this gray playing, and should come off with it.

Using the blue spudger pry the gray plastic plating off. Be mindful of the openings along the top side between the hinges.

The gray plating cover is secured extremely tightly. Be careful not to break any parts of it as you pry. Note also that the black parts which serve to cover the hinges are also a part of this gray playing, and should come off with it.

Step 24

Locate the motherboard.

Locate the motherboard.

Step 25

Slip the Wi-Fi card wires (black and white pair) out from under the yellow translucent tape.
Peel back the yellow translucent tape at the bottom of the motherboard which secured the hard drive connector.

Slip the Wi-Fi card wires (black and white pair) out from under the yellow translucent tape.

Peel back the yellow translucent tape at the bottom of the motherboard which secured the hard drive connector.

Step 26

Locate the heat-sink. This will be a black metal bar at the top of the laptop, which covers the motherboard.
Unscrew the four metallic-colored (2.9mm) screws securing the heat-sink.
Locate and unscrew the top two black (5.70mm) screws, which secure the motherboard to the base of the laptop.
Lift the heatsink, and set aside.

Locate the heat-sink. This will be a black metal bar at the top of the laptop, which covers the motherboard.

Unscrew the four metallic-colored (2.9mm) screws securing the heat-sink.

Locate and unscrew the top two black (5.70mm) screws, which secure the motherboard to the base of the laptop.

Lift the heatsink, and set aside.

Step 27

Locate the small wire plug on the bottom left of the motherboard.
Gently remove the wire plug with tweezers.

Locate the small wire plug on the bottom left of the motherboard.

Gently remove the wire plug with tweezers.

Step 28

To remove, slowly lift upwards on the left side of the mother board and pull to the right. Wiggling it around may help loosen from the USB connectors on the left side.
Lift the motherboard up slowly, and flip it upside down. Remove the white wire plug on the underside of the motherboard.
This plug is secured very tightly. The rectangular mark in the top is meant to be pushed down with a tool before it can actually be unplugged- you may need to lay the motherboard on a flat surface and call for assistance so that one person can focus on pushing down on the rectangular tightener, and one person can pull.

To remove, slowly lift upwards on the left side of the mother board and pull to the right. Wiggling it around may help loosen from the USB connectors on the left side.

Lift the motherboard up slowly, and flip it upside down. Remove the white wire plug on the underside of the motherboard.

This plug is secured very tightly. The rectangular mark in the top is meant to be pushed down with a tool before it can actually be unplugged- you may need to lay the motherboard on a flat surface and call for assistance so that one person can focus on pushing down on the rectangular tightener, and one person can pull.

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

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