Dell P144G User Manual

About this task
The following image indicates the location of the heatsink assembly and provides a visual representation of the installation
procedure.
Steps
1. Align and place the heatsink assembly into the slot on the system board.
2. Tighten the four captive screws (in order, 1>2>3>4) to secure the heatsink assembly to the system board.
Next steps
1. Install the base cover.
2. Exit the service mode
3. Install the SIM card tray for systems enabled with 4G LTE.
4. Install the microSD-card.
5. Follow the procedure in after working inside your computer.
Power adapter port
Removing the power adapter port
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the microSD-card.
3. Remove the SIM card tray for 4G LTE enabled systems.
4. Enter the service mode.
5. Remove the base cover.
Removing and installing components
63

Dell P144G Specifications

General

Brand	Dell
Model	P144G
Category	Laptop
Language	English

Summary

Working inside your computer

Safety instructions

Essential safety guidelines and precautions before disassembling the computer.

Removing and installing components

MicroSD-card

Procedures for removing and installing the microSD card.

SIM card tray

Steps for removing and installing the SIM card tray for 4G LTE systems.

Base cover

Instructions for removing and installing the computer's base cover.

Battery cable

Precautions and steps for removing and installing the battery cable.

Memory module

Procedures for removing and installing the system's memory module.

M.2 solid-state drive

Steps for removing and installing M.2 2230 and M.2 2280 solid-state drives.

Hard-disk drive assembly

Steps for removing the hard-disk drive assembly and its bracket.

WLAN card

Procedures for removing and installing the WLAN card.

WWAN card

Steps for removing and installing the WWAN card.

System fan

Instructions for removing and installing the system fan.

Battery

Procedures for removing and installing 3-cell and 4-cell batteries.

I/O cable

Steps for removing and installing the I/O cable.

Display assembly

Instructions for removing and installing the display assembly.

Display panel

Procedures for removing and installing the display panel.

Display bezel

Steps for removing and installing the display bezel.

Heatsink assembly

Instructions for removing and installing the heatsink assembly.

Power adapter port

Procedures for removing and installing the power adapter port.

Coin-cell battery

Steps for removing and installing the coin-cell battery.

USB cable

Ethernet port

I/O board

Power button

System board

Instructions for removing and installing the system board.

Speakers

Touchpad

WWAN I/O board

Palmrest assembly

Camera

Display cable

Display back-cover

BIOS setup

Entering BIOS setup program

One time boot menu

System setup options

Updating the BIOS

Guides for updating the system BIOS through various methods.

System and setup password

Procedures for assigning, deleting, or changing system and setup passwords.

Clearing CMOS settings

Troubleshooting

Handling swollen Lithium-ion batteries

Dell SupportAssist Pre-boot System Performance Check diagnostics

Built-in self-test (BIST)

Recovering the operating system

Drain residual flea power (perform hard reset)