Dell Inspiron 1521 (PP22L) Motherboard Removal & Installation

Created by on August 4, 2022
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In this Dell laptop tutorial we are going to show you how to install and replace the Motherboard on your Inspiron 1521 (PP22L) laptop. These installation instructions have be made into 23 easy to follow printable steps. We have also create a video tutorial that shows you how to install your Inspiron 1521 (PP22L) Motherboard.

Before you begin

Please take the time read the following safety guidelines when working on static sensitive electrical components.
Dell repair manual service precautions

Tools needed for this laptop repair

  • 1 x small phillips head screwdriver
  • 1 x small plastic scribe
Inspiron 1521 Motherboard

Dell Laptop Replacement Parts Needed

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Use this coupon code to save 5% off these parts
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Inspiron 1521 Motherboard

Video tutorial repair manual



Installation and Removal Instructions
Inspiron 1521 Motherboard

Slide the battery latches over to unlock the battery.

Step 1

  • Slide the battery latches over to unlock the battery.
  • Slide the Battery out of the laptop.
Slide the battery latches over to unlock the battery.Slide the Battery out of the laptop.Slide the battery latches over to unlock the battery.
Remove the 1 - M2.5 x 5mm screw.

Step 2

Remove the 1 - M2.5 x 5mm screw.Slide the Optical Drive out of the laptop.Remove the 1 - M2.5 x 5mm screw.
Remove the 4 - M3 x 3mm screws.

Step 3

Remove the 4 - M3 x 3mm screws.Slide the Hard Drive out of the laptop.
Loosen the screws.

Step 4

Loosen the screws.Remove the Wireless Card Door.Loosen the screws.
Unplug the WLAN antenna cables.

Step 5

  • Unplug the WLAN antenna cables.
  • Unplug the WWAN antenna cables.
Unplug the WLAN antenna cables.Unplug the WWAN antenna cables.
Press the latches up to release the WLAN card.

Step 6

Press the latches up to release the WLAN card.Remove the Wireless WLAN Card.Press the latches up to release the WLAN card.
Press the latches up to release the WLAN card.

Step 7

Press the latches up to release the WLAN card.Remove the Wireless WWAN Card.Press the latches up to release the WLAN card.
Loosen the screw.

Step 8

Loosen the screw.Remove the Memory Door.Loosen the screw.
Separate the clips and remove the RAM Memory.

Step 9

Separate the clips and remove the RAM Memory.Separate the clips and remove the RAM Memory.Separate the clips and remove the RAM Memory.
Remove the 2 - M2.5 x 8mm bottom hinge screws.

Step 10

Remove the 2 - M2.5 x 8mm bottom hinge screws.Remove the 2 - M2.5 x 8mm back hinge screws.Remove the 11 - M2.5 x 8mm bottom base screws.
Carefully pry up & unsnap the Power Button Cover, starting on the right and working your way left.

Step 11

  • Carefully pry up & unsnap the Power Button Cover, starting on the right and working your way left.
Carefully pry up & unsnap the Power Button Cover, starting on the right and working your way left.Carefully pry up & unsnap the Power Button Cover, starting on the right and working your way left.Carefully pry up & unsnap the Power Button Cover, starting on the right and working your way left.
Loosen the LCD cable screw.

Step 12

  • Loosen the LCD cable screw.
  • Unplug & loosen the cables.
Loosen the LCD cable screw.Unplug & loosen the cables.
Remove the LCD Display.

Step 13

Remove the LCD Display.Remove the LCD Display.
Unplug & remove the Bluetooth Card.

Step 14

Unplug & remove the Bluetooth Card.Unplug & remove the Bluetooth Card.Unplug & remove the Bluetooth Card.
Remove the 2 - M2.5 x 5mm keyboard screws.

Step 15

  • Remove the 2 - M2.5 x 5mm keyboard screws.
  • Carefully lift the keyboard to reveal the cable.
  • Unplug the cable.
  • Remove the Keyboard.
Remove the 2 - M2.5 x 5mm keyboard screws.Carefully lift the keyboard to reveal the cable.Unplug the cable.Remove the Keyboard.
Press the latch down to loosen the memory cover.

Step 16

  • Press the latch down to loosen the memory cover.
  • Separate the clips & remove the RAM Memory.
Press the latch down to loosen the memory cover.Separate the clips & remove the RAM Memory.Press the latch down to loosen the memory cover.Press the latch down to loosen the memory cover.
Remove the 4 - M2 x 3mm palmrest screws.

Step 17

  • Remove the 4 - M2 x 3mm palmrest screws.
  • Unplug the palmrest cable.
  • Remove the Palmrest.
Remove the 4 - M2 x 3mm palmrest screws.Unplug the palmrest cable.Remove the Palmrest.
Remove the 2 - M2 x 3mm screws.

Step 18

  • Remove the 2 - M2 x 3mm screws.
  • Unplug the cable.
  • Unplug & remove the Modem Card from the board.
Remove the 2 - M2 x 3mm screws.Unplug the cable.Unplug & remove the Modem Card from the board.Remove the 2 - M2 x 3mm screws.
Remove the 6 - M2.5 x 5mm screws.

Step 19

Remove the 6 - M2.5 x 5mm screws.Remove the ExpressCard Assembly.Remove the 6 - M2.5 x 5mm screws.
Loosen the screws.

Step 20

  • Loosen the screws.
  • Remove & clean the Heatsink.
Loosen the screws.Remove & clean the Heatsink.Loosen the screws.
Turn the locking screw.

Step 21

Turn the locking screw.Remove the CPU Processor.Turn the locking screw.
Remove the bluetooth cable.

Step 22

  • Remove the bluetooth cable.
  • Unplug the infrared cable.
  • Unplug the speaker cable.
  • Unplug the audio board cable.
Remove the bluetooth cable.Unplug the infrared cable.Unplug the speaker cable.Unplug the audio board cable.
Unplug the fan cable.

Step 23

Unplug the fan cable.Remove the 11 - M2.5 x 5mm motherboard screws.Remove the Motherboard.Unplug the fan cable.
Inspiron 1521 Motherboard

Dell Laptop Replacement Parts Needed

DIY Discount - Parts-People.com offers 5% off to all DO-IT-YOURSELFERS!
Use this coupon code to save 5% off these parts
DIYM514
Inspiron 1521 Motherboard

Topics: Dell Inspiron Repair Manuals Dell Laptop Repair Dell Repair Manuals Inspiron 1521 Motherboard

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