In the following guide I show how to disassemble a Dell Inspiron 14z-N411z laptop.
You can use this guide for the following procedures:
- Accessing and removing the hard drive, RAM (memory) modules, optical drive.
- Disconnecting and removing/replacing the keyboard.
- Accessing the trackpad and power button board.
- Removing or cleaning the cooling fan.
Before you start the disassembly process make sure it’s turned off.
Unlock and remove the battery.
Remove one screw securing the service cover on the bottom.
Remove the service cover.
Under the service cover you can access:
- RAM (memory) module 1. Second memory module located under the keyboard and we’ll access in in the step 15.
- CMOS battery.
- Hard drive.
I will leave the memory module and CMOS battery connected to the motherboard but show how to remove the hard drive.
Remove four screws securing the hard drive mounting bracket. Slide the hard drive to the right to disconnect from the motherboard.
Lift up and remove the hard drive.
Remove one screw securing the optical drive.
Slide the optical drive to the left and remove it.
The keyboard secured to the top cover by four plastic knobs.
In order to separate the keyboard from the top cover insert a small flat head screwdriver (or knife blade) between the keyboard and top cover.
Carefully lift up the keyboard and push it though the first knob.
Continue separating the keyboard with your fingers.
Lift up the top side of the keyboard.
Turn the keyboard upside down and place it on the palm rest.
Now you can access the keyboard cable connector.
By the way, when you install the keyboard back into the laptop make sure the cable positioned correctly. There is “UP” sign on the cable.
Unlock the connector by lifting up the left side of the retainer.
After the connector is unlocked, remove the cable from the connector.
Remove the keyboard. Replace it with a new one if needed.
The second memory module located under the keyboard.
Remove screws from the bottom.
Remove screws securing the top cover assembly.
Disconnect the following cables (left to right):
- Power button board cable.
- Trackpad cable.
- Hot key board cable.
Use same technique as for disconnecting the keyboard cable.
Start separating the top cover assembly from the bottom cover. I’m using a guitar pick for that.
Remove the top cover assembly.
On the bottom side of the top cover you can access:
- Hot key board.
- Power button board.
- Trackpad button board.
After the top cover removed you can access the cooling fan.
Remove one screw securing the cooling fan.
Unplug fan cable from the motherboard.
Remove the cooling fan.
Now you can replace the fan or clean up the heat sink.