Dell Latitude D631 (PP18L) CPU Removal Removal and Installation

By Ricardo on January 25, 2017 · 11:23 am

In this Dell laptop tutorial we are going to show you how to install and replace the CPU on your Dell Latitude D631 (PP18L) laptop. These installation instructions have be made into 18 easy to follow printable steps. We have also create a video tutorial that shows you how to install your Dell Latitude D631 (PP18L) CPU.

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 screw driver
1 x small plastic scribe

Latitude D631 CPU

Dell Laptop Replacement Parts Needed

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Latitude D631 CPU Removal

Video tutorial repair manual

Installation and Removal Instructions
Dell Latitude D631 CPU

Slide the battery down and lift out of the laptop.

Step 1

Slide the battery latches over.
Slide the battery down and lift out of the laptop.

Unscrew the retaining screw and remove the door from the laptop

Step 2

Unscrew the retaining screw and remove the door from the laptop

Step 3

Remove the (2) 3mm x 3mm hard drive screws.
Slide the hard drive out of the laptop.

Press in the optical drive latch to get it to eject.

Step 4

Remove the 2mm x 5mm optical drive latch locking screw.
Press in the optical drive latch to get it to eject.
Pull the latch to slide the optical drive out of the laptop.

Remove the (2) 2.5mm x 5mm hinge screws on the back edge of the laptop.

Step 5

Remove the (2) 2.5mm x 5mm bottom hinge screws.
Remove the (2) 2.5mm x 5mm hinge screws on the back edge of the laptop.

Loosen the 2 non-removable PCI slot screws.

Step 6

Loosen the 2 non-removable PCI slot screws.

Unscrew the (7) 2.5mm x 8mm base screws.

Step 7

Unscrew the (7) 2.5mm x 8mm base screws.

Using a flat head screwdriver, pry up the power button cover using the slot on the right side.

Step 8

Turn the laptop over and open it as wide as possible, approximately 180 degrees.
Using a flat head screwdriver, pry up the power button cover using the slot on the right side.
Carefully unsnap the power button cover, starting from the right and working your way left.

Carefully lift the keyboard and turn it over to reveal the keyboard cable.

Step 9

Remove the (3) 2mm x 3mm screws.
Carefully lift the keyboard and turn it over to reveal the keyboard cable.

Unplug the keyboard cable by lifting the blue ribbon straight up.

Step 10

Unhook the keyboard cable retaining clip by pivoting the blue clip up.
Unplug the keyboard cable by lifting the blue ribbon straight up.

Step 11

Disconnect the WLAN antenna cables.
Disconnect the WWAN antenna cables.

Loosen the antenna cables and LCD cable from the routing channels.

Step 12

Unplug the LCD cable.
Loosen the antenna cables and LCD cable from the routing channels.
Lift the LCD display assembly away from the laptop base.

Unscrew the (3) 2.5mm x 8mm palm rest screws.

Step 13

Unscrew the (3) 2.5mm x 8mm palm rest screws.

Step 14

Unplug the CMOS battery.

Step 15

Unplug the palm rest. The cable is located under the left edge of the palm rest.
Lift the palm rest from the base.

Take off the heat sink from the motherboard.

Step 16

Loosen the 4 heat sink screws.
Take off the heat sink from the motherboard.

Turn the CPU locking screw counterclockwise 180 degrees to unlock the CPU.

Step 17

Turn the CPU locking screw counterclockwise 180 degrees to unlock the CPU.

Installation note 2: Tighten the heatsink screws in the order listed on the heatsink.

Step 18

Installation note 1: Make sure to replace thermal compound or thermal pads on the CPU and heatsink.
Installation note 2: Tighten the heatsink screws in the order listed on the heatsink.
**This image is used only as an example.**

Latitude D631 CPU