Lenovo Laptop T400 Motherboard Replacement

Introduction

Detailed steps to dissasemble to the logic board, then usefull pictures for rest of guide. (remember to add new thermal compound if you need to remove/replace fan assembly on processor and GPU)

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Étape 1 Motherboard

Lenovo Laptop T400 Motherboard Replacement, Motherboard: étape 1, image 1 de 1

recommend to print out picture of the backside of the laptop and then use it as a template to place the screws on. They are many and different sizes.
Remove all bottom screws and place on template printout.

Modifier

Étape 2

Remove DVD drive. Toggle the "play triangle" switch so that the tab extends. Pull the tab to remove the DVD drive.
Remove hard drive

Modifier

Étape 3

Lenovo Laptop T400 Motherboard Replacement: étape 3, image 3 de 3

unsnap touchpad left and right.
lift up touchpad carefully, and disconnect touchpad.

Modifier

Étape 4

Pull keyboard gently toward yourself. and then lift up untill flex is visible.
use spudger to disconnect connector for keyboard.

Modifier

Étape 5

The rest of the guide is mosly helpfull pictures...
Remove WLAN module by
unplug carefully with spudger the two RF connectors to WLAN module.
remove the two screws holding wlan module.
lift up module 45 degress and pull outwards.

Modifier

Étape 6

Lenovo Laptop T400 Motherboard Replacement: étape 6, image 3 de 3

usefull images showing most of main assembly.
Removing RAM modules is usefull if the whole logic board needs to be taken out.
From here on , unscrew everything - carefully note where screws belong. I used Ifixit magnetic mat and some note making.