Asus X551Ca Motherboard Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          5 - 10 minutes

Sections

Keyboard Plate Cover
5 steps
Hard Drive
3 steps
Spacer
2 steps
WiFi Card
3 steps
Battery
1 step
Motherboard
5 steps

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Introduction

What you need

Step 1

              Keyboard Plate Cover

Power off and unplug your laptop before you begin.
Turn the laptop upside-down and remove the following screws using a Phillips #0 driver:
Two 9.5 mm screws in the middle of the back edge, and one 9.5 mm screw in the right edge
Two 4.3 mm screws in the back corners
One 17.5 mm screw at the left edge near the optical drive
Three 4.3 mm screws in the front edge

Power off and unplug your laptop before you begin.

Turn the laptop upside-down and remove the following screws using a Phillips #0 driver:

Two 9.5 mm screws in the middle of the back edge, and one 9.5 mm screw in the right edge

Two 4.3 mm screws in the back corners

One 17.5 mm screw at the left edge near the optical drive

Three 4.3 mm screws in the front edge

1024

Step 2

Use the plastic opening tool to separate the keyboard plate cover from the bottom cover. In order to do this, insert the plastic opening tool in between the keyboard plate cover and the bottom cover, then slide along edges to pry open.

Use the plastic opening tool to separate the keyboard plate cover from the bottom cover. In order to do this, insert the plastic opening tool in between the keyboard plate cover and the bottom cover, then slide along edges to pry open.

Step 3

Locate the three ribbons connecting the keyboard plate cover to the bottom cover.

Locate the three ribbons connecting the keyboard plate cover to the bottom cover.

Step 4

Invert the laptop in order to gain access to the ribbons.
Remove each ribbon by flipping the small white plastic flap up and gently pulling on the ribbon.

Invert the laptop in order to gain access to the ribbons.

Remove each ribbon by flipping the small white plastic flap up and gently pulling on the ribbon.

Step 5

Now that the ribbons have been detached from the bottom cover, carefully remove the keyboard plate cover. Once it has been removed, place it in a safe and moisture free area so it does not get damaged.

Now that the ribbons have been detached from the bottom cover, carefully remove the keyboard plate cover. Once it has been removed, place it in a safe and moisture free area so it does not get damaged.

Step 6

              Hard Drive

Unscrew the three 5.5 mm Phillips #0 screws with the Phillips #0 Screwdriver.

Unscrew the three 5.5 mm Phillips #0 screws with the Phillips #0 Screwdriver.

Step 7

Once the screws have been removed, place your fingers on the left corners and push the hard drive towards the right edge of the laptop (relative to the picture).

Once the screws have been removed, place your fingers on the left corners and push the hard drive towards the right edge of the laptop (relative to the picture).

Step 8

Once it is free, remove the hard drive from its internal cavity.

Once it is free, remove the hard drive from its internal cavity.

Step 9

              Spacer

Using the Phillips #0 Screwdriver, unscrew the 5.5 mm Phillips #0 screw that holds the spacer in place.

Using the Phillips #0 Screwdriver, unscrew the 5.5 mm Phillips #0 screw that holds the spacer in place.

Step 10

Remove the spacer from the laptop by gently sliding it towards the right edge of the laptop.

Remove the spacer from the laptop by gently sliding it towards the right edge of the laptop.

Step 11

              WiFi Card

Use the Phillips #0 Screwdriver to unscrew the 3.2 mm Phillips #0 screw which attaches the WiFi card to the motherboard.

Use the Phillips #0 Screwdriver to unscrew the 3.2 mm Phillips #0 screw which attaches the WiFi card to the motherboard.

Step 12

Disconnect the Wifi card from the motherboard by gently sliding it towards the right edge of the laptop.

Disconnect the Wifi card from the motherboard by gently sliding it towards the right edge of the laptop.

Step 13

Remove each of the two small antenna connections by disconnecting one wire at a time. Each wire should easily unsnap from the Wifi card.

Remove each of the two small antenna connections by disconnecting one wire at a time. Each wire should easily unsnap from the Wifi card.

Step 14

              Battery

Remove the battery from the laptop by applying pressure on both ends and lifting it out of the case.

Remove the battery from the laptop by applying pressure on both ends and lifting it out of the case.

Step 15

              Motherboard

With the Phillips #0 Screwdriver, remove the nine 5.5 mm Phillips #0 screws which hold the motherboard in place.

With the Phillips #0 Screwdriver, remove the nine 5.5 mm Phillips #0 screws which hold the motherboard in place.

Step 16

Now, locate the two wires connected to the motherboard.

Now, locate the two wires connected to the motherboard.

Step 17

Remove the wires by easily pulling them parallel to the motherboard’s surface.
The wires are very fragile. Be sure to pull carefully so that they do not break!

Remove the wires by easily pulling them parallel to the motherboard’s surface.

The wires are very fragile. Be sure to pull carefully so that they do not break!

Step 18

Remove the LCD display connection by gently pulling on the attached wire.
Gently lift any tape that may be holding the connection.

Remove the LCD display connection by gently pulling on the attached wire.

Gently lift any tape that may be holding the connection.

Step 19

Remove the motherboard from the case by gently lifting it upward.

Remove the motherboard from the case by gently lifting it upward.

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

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                                                                                      15 other people completed this guide.

Author

                                      with 7 other contributors

                    Josh

Member since: 04/10/2014

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Team

                       Cal Poly, Team 7-22, Regan Spring 2014                        

                                                  Member of Cal Poly, Team 7-22, Regan Spring 2014 



                    CPSU-REGAN-S14S7G22                     


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                                            15 Guides authored

Ifeanyi Emeka - Aug 12, 2014

thanks for the step… please where can i buy the motherboard online.

Jeff McVay - Jun 7, 2016

anyone know what the part number is for the audio combo jack?

Ismael Leblanc - Oct 31, 2017

My mobo has some damaged mosfets due to a faulty charger. I tested both voltage and amperage with a multimeter and theres a part of the mobo that’s not receiving any power, I figured out searching on the web that there are a few mosfets that regulate voltage on the mobo and there is one that’s not giving any output power at all. The mobo turns on for a few seconds starts the BIOS configuration then turs off and doesn’t start at all for about 4 hours or so. if I connect the DC adapter the charging led turns on for a few seconds then turns off again once every few hours. My laptop is out of any warranty and I really wat to fix this, I can’t afford a new laptop or a replacement mobo

Tom - May 13, 2018

now many sellers on ebay have cheap motherboards for asus x551ca, it’s more expensive to fix a motherboard than to buy a replacement.

Ion05 - Sep 15, 2018

Can i replace on the same laptop same motherboard but with different specifications pls i need answer

Introduction#

What you need#

Team#

Introduction

What you need

Team