Difficulty

Easy

Steps

7

Time Required

Suggest a time??

Sections

3

  • Battery Disconnect
  • 3 steps
  • Heat Shield
  • 1 step
  • CPU Fan / Heat Sink Assembly
  • 3 steps

Flags

1

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  • BackASUS VivoBook S400C

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Introduction

The heatsink is used to channel heat away from the processor. It is pressed tightly to the CPU and the space between is filled with thermal grease, a compound that helps transfer the heat from the chip to the heatsink.

However, the heatsink alone isn’t enough to do the job. Once you’ve got the heat away from the processor, you still have to get rid of it. That’s where the CPU fan comes in; it blows cool air over the fins on the heatsink, ejecting the hot air out the back of the laptop.

Use this guide to remove the fan / heatsink assembly; there is a separate guide if your fan has failed and needs to be replaced:

ASUS VivoBook S400C CPU Fan Replacement

What you need

Step 1

              Remove the Bottom Cover
  • Flip the device over and remove the ten 5.7 mm screws with a Phillips #0 screwdriver.

Flip the device over and remove the ten 5.7 mm screws with a Phillips #0 screwdriver.

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Step 2

  • Use a spudger or your fingers to go around and lift the edges and release the back panel.

Use a spudger or your fingers to go around and lift the edges and release the back panel.

Step 3

              Disconnect the Battery
  • Using a spudger, lift up the plug connecting the battery to the motherboard.

Using a spudger, lift up the plug connecting the battery to the motherboard.

Step 4

              Heat Shield
  • Remove the black shield covering the display connector and the heat sink.
  • You may need to use double-sided adhesive tape to resecure the shield.

Remove the black shield covering the display connector and the heat sink.

You may need to use double-sided adhesive tape to resecure the shield.

Step 5

              CPU Fan / Heat Sink Assembly
  • Unplug the fan.
  • Grasp the plug with a fingernail on either side and pull it straight out from the connector.

Unplug the fan.

Grasp the plug with a fingernail on either side and pull it straight out from the connector.

Step 6

              Remove the Fan and Heatsink Screws
  • Remove the two 5 mm screws securing the fan.
  • Remove the four 3 mm screws securing the heat sink.
  • Removing the screw covered by the warning label will void your warranty.

Remove the two 5 mm screws securing the fan.

Remove the four 3 mm screws securing the heat sink.

Removing the screw covered by the warning label will void your warranty.

Step 7

              Remove the Fan and Heatsink
  • Lift the fan and heatsink straight up to remove it.
  • Before reassembly it is essential to clean off the old thermal paste from the processor and the heatsink and to apply new. How to apply thermal paste explains how.

Lift the fan and heatsink straight up to remove it.

Before reassembly it is essential to clean off the old thermal paste from the processor and the heatsink and to apply new. How to apply thermal paste explains how.

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

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Author

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                    Jerry W

Member since: 03/21/2022

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