DELL E5250 User Manual

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DELL E5250 Manual

Dell Latitude E5250 / 5250

Owner's Manual

Regulatory Model: P25S

Regulatory Type: P25S001

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your computer.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you

how to avoid the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

intellectual property laws. Dell™ and the Dell logo are trademarks of Dell Inc. in the United States and/or other

jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies.

2014 - 12

Rev. A01

Working on Your Computer

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help to

ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes

that the following conditions exist:

• You have read the safety information that shipped with your computer.

• A component can be replaced or--if purchased separately--installed by performing the removal

procedure in reverse order.

WARNING: Disconnect all power sources before opening the computer cover or panels. After you

finish working inside the computer, replace all covers, panels, and screws before connecting to

the power source.

WARNING: Before working inside your computer, read the safety information that shipped with

your computer. For additional safety best practices information, see the Regulatory Compliance

Homepage at www.dell.com/regulatory_compliance

CAUTION: Many repairs may only be done by a certified service technician. You should only

perform troubleshooting and simple repairs as authorized in your product documentation, or as

directed by the online or telephone service and support team. Damage due to servicing that is

not authorized by Dell is not covered by your warranty. Read and follow the safety instructions

that came with the product.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or

by periodically touching an unpainted metal surface, such as a connector on the back of the

computer.

CAUTION: Handle components and cards with care. Do not touch the components or contacts

on a card. Hold a card by its edges or by its metal mounting bracket. Hold a component such as a

processor by its edges, not by its pins.

CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable

itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable,

press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep

them evenly aligned to avoid bending any connector pins. Also, before you connect a cable,

ensure that both connectors are correctly oriented and aligned.

NOTE: The color of your computer and certain components may appear differently than shown in

this document.

To avoid damaging your computer, perform the following steps before you begin working inside the

computer.

1. Ensure that your work surface is flat and clean to prevent the computer cover from being scratched.

2. Turn off your computer (see Turning off Your Computer).

3. If the computer is connected to a docking device (docked), undock it.

CAUTION: To disconnect a network cable, first unplug the cable from your computer and

then unplug the cable from the network device.

4. Disconnect all network cables from the computer.

5. Disconnect your computer and all attached devices from their electrical outlets.

6. Close the display and turn the computer upside-down on a flat work surface.

NOTE: To avoid damaging the system board, you must remove the main battery before you

service the computer.

7. Remove the base cover.

8. Remove the main battery.

9. Turn the computer top-side up.

10. Open the display.

11. Press and hold the power button for few seconds, to ground the system board.

CAUTION: To guard against electrical shock, always unplug your computer from the

electrical outlet before opening the display.

CAUTION: Before touching anything inside your computer, ground yourself by touching an

unpainted metal surface, such as the metal at the back of the computer. While you work,

periodically touch an unpainted metal surface to dissipate static electricity, which could

harm internal components.

12. Remove any installed ExpressCards or Smart Cards from the appropriate slots.

Turning Off Your Computer

CAUTION: To avoid losing data, save and close all open files and exit all open programs before

you turn off your computer.

1. Shut down the operating system:

• In Windows 8.1:

– Using a touch-enabled device:

a. Swipe in from the right edge of the screen, opening the Charms menu and select

Settings.

b. Select the and then select Shut down.

* On the Home screen, touch the and then select Shut down.

– Using a mouse:

a. Point to upper-right corner of the screen and click Settings.

b. Click the and select Shut down.

* On the Home screen, click and then select Shut down.

• In Windows 7:

1. Click Start .

2. Click Shut Down.

1. Click Start .

2. Click the arrow in the lower-right corner of the Start menu as shown below, and then click

Shut Down .

2. Ensure that the computer and all attached devices are turned off. If your computer and attached

devices did not automatically turn off when you shut down your operating system, press and hold

the power button for about 6 seconds to turn them off.

After Working Inside Your Computer

After you complete any replacement procedure, ensure you connect any external devices, cards, and

cables before turning on your computer.

CAUTION: To avoid damage to the computer, use only the battery designed for this particular

Dell computer. Do not use batteries designed for other Dell computers.

1. Connect any external devices, such as a port replicator or media base, and replace any cards, such as

an ExpressCard.

2. Connect any telephone or network cables to your computer.

CAUTION: To connect a network cable, first plug the cable into the network device and then

plug it into the computer.

3. Replace the battery.

4. Replace the base cover.

5. Connect your computer and all attached devices to their electrical outlets.

6. Turn on your computer.

Removing and Installing Components

This section provides detailed information on how to remove or install the components from your

computer.

Recommended Tools

The procedures in this document may require the following tools:

• Small flat-blade screwdriver

• #0 Phillips screwdriver

• #1 Phillips screwdriver

• Small plastic scribe

System Overview

Connecting Your Charger

Front and Back View

1. network connector 2. USB 3.0 connector

3. HDMI connector 4. microphones (optional)

5. camera 6. camera-status light

7. power connector 8. microphone

9. power button 10. Mini-DisplayPort connector

11. USB 3.0 connector with PowerShare 12. memory-card reader

13. contactless smart-card reader (optional) 14. fingerprint reader (optional)

15. wireless-status light 16. battery-status light

17. hard-drive activity light 18. power-status light

19. speakers 20. touchpad

21. smart-card reader (optional) 22. headset connector

23. security-cable slot 24. dock connector (optional)

25. service-tag label

Removing the SD Card

1. Follow the procedures in Before Working Inside Your Computer.

2. Press in on the SD card to release it from the computer.

3. Slide the SD card out of the computer.

Installing the SD Card

1. Push the SD card into its slot until it clicks into place.

2. Follow the procedures in After Working Inside Your Computer.

Removing the Base Cover

1. Follow the procedures in Before Working Inside Your Computer.

2. Perform the following steps to remove the base cover from the computer:

a. Remove the screws that secure the base cover to the computer.

b. Lift the base cover from its edge and remove the base cover from the computer.

NOTE: You may need a sharp tool to pry the base cover from its edge.

Installing the Base Cover

1. Place the base cover to align with the screw holders on the computer.

2. Tighten the screws to secure the base cover to the computer.

3. Follow the procedures in After Working Inside Your Computer.

Removing the Battery

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the base cover.

3. Disconnect the battery cable from its connector [1] and release the cable from its routing channel [2].

4. Perform the following steps:

a. Remove the screw that secures the battery to the computer [1].

b. Lift and push to remove the battery from the computer [2] [3].

Installing the Battery

1. Insert the battery into its place on the computer.

2. Route the battery cable through its routing channel.

3. Tighten the screw to secure the battery to the computer.

4. Connect the battery cable to its connector on the system board.

5. Install the base cover.

6. Follow the procedures in After Working Inside Your Computer.

Removing the Hard-Drive Assembly

1. Follow the procedure in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

3. Perform the following steps:

a. Disconnect the hard-drive cable from its connector on the system board [1] .

b. Remove the screws that secure the hard-drive assembly to the computer [2].

4. Remove the hard-drive assembly from the computer.

5. Pull to release the hard-drive cable from its connector.

6. Remove the screws that secure the hard-drive bracket to the hard drive [1] and remove the hard drive

from the hard-drive bracket [2].

Installing the Hard-Drive Assembly

1. Place the hard-drive bracket on the hard drive to align the screw holders and tighten the screws to

secure the hard-drive bracket.

2. Connect the hard-drive cable to its connector on the hard drive.

3. Place the hard-drive assembly into its slot on the computer.

4. Connect the hard-drive cable to its connector on the system board.

5. Tighten the screws to secure the hard-drive assembly to the computer.

6. Install the:

a. battery

b. base cover

7. Follow the procedures in After Working Inside Your Computer.

Removing the Memory

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

3. Pry the clips securing the memory module until the memory pops-up and remove the memory from

the system board.

Installing the Memory

1. Insert the memory on the memory socket until the clips secure the memory.

2. Install the:

a. battery

b. base cover

3. Follow the procedures in After Working Inside Your Computer.

Removing the Keyboard Trim

1. Follow the steps in Before Working Inside Your Computer.

2. Pry the keyboard trim from its edges.

NOTE: You may need a sharp tool to pry the keyboard trim from its edges.

3. Remove the keyboard trim from the keyboard.

Installing the Keyboard Trim

1. Insert the keyboard trim to the keyboard until it snaps in its place.

2. Follow the procedures in After Working Inside Your Computer.

Removing the Keyboard

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

3. Disconnect the keyboard cable from its connector on the system board.

4. Remove the screws that secure the keyboard to the computer.

5. Remove the keyboard from the computer.

Installing the Keyboard

1. Place the keyboard to align with the screw holders on the computer.

2. Connect the keyboard cable to its connector on the system board.

3. Tighten the screws to secure the keyboard to the computer.

4. Install the:

a. keyboard trim

b. battery

c. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the Palmrest

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

d. keyboard

3. Remove the screws that secure the palmrest to the computer.

4. Flip the computer and perform the following steps:

a. Disconnect the touchpad cable and USH board cable from their connectors [1] [2].

b. Remove the screw that secures the palmrest to the computer [3].

5. Pry the palmrest at its edges to release [1] and remove the palmrest from the computer [2].

Installing the Palmrest

1. Place the palmrest on the computer.

2. Connect the following cables to their connectors on the system board:

a. LED board

b. USH board

c. touchpad board

3. Tighten the screws at the front and back of the computer to secure the palmrest.

4. Install the:

a. keyboard

b. keyboard trim

c. battery

d. base cover

5. Follow the procedures in After Working Inside Your Computer

Removing the SmartCard Reader Board

NOTE: This component is sold separately and is not shipped with the computer.

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. keyboard trim

e. keyboard

f. palmrest

3. Perform the following steps:

a. Disconnect the SmartCard reader board cable from the USH board [1] [2].

b. Peel the cable to release from the adhesive [3].

4. Release the SmartCard reader board. To release the SmartCard reader board:

a. Remove the screws that secure the SmartCard-reader board to the palmrest [1].

b. Push the SmartCard-reader board to release it [2].

5. Remove the SmartCard reader board from the palmrest.

Installing the SmartCard-Reader Board

1. Place the SmartCard-reader board into its slot on the palmrest.

2. Tighten the screws to secure the SmartCard-reader board to the palmrest.

3. Fix the SmartCard-reader cable and connect the SmartCard-reader cable to its connector on the

USH board.

4. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. battery

e. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the USH Board

NOTE: This component is sold separately and is not shipped with the computer.

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. hard-drive assembly

d. keyboard trim

e. keyboard

f. palmrest

3. Perform the following steps to remove the USH board:

a. Disconnect all the cables from the USH board [1] [2].

b. Remove the screw that secures the USH board to the palmrest [3].

c. Remove the USH board from the palmrest [4].

Installing the USH Board

1. Place the USH Board on the palmrest.

2. Tighten the screw to secure the USH board to the palmrest.

3. Connect all the cables to the USH board.

4. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. hard-drive assembly

e. battery

f. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the Finger-Print Reader Board

NOTE: This component is sold separately and is not shipped with the computer.

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

d. keyboard

e. palmrest

3. Perform the following steps to remove the finger-print reader board:

a. Remove the screw to release the metal bracket that secures the finger-print reader board to the

palmrest [1] [2].

b. Disconnect the finger-print reader cable from the finger-print reader board [3] [4].

c. Remove the finger-print reader board from the palmrest [5].

Installing the Finger-Print Reader Board

1. Insert the finger-print reader board into its place on the palmrest.

2. Connect the finger-print reader cable to the finger-print reader board.

3. Place the metal bracket on the finger-print reader board and tighten the screw to secure the finger-

print reader board.

4. Install the:

a. keyboard trim

b. keyboard

c. palmrest

d. battery

e. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the LED Board

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

d. keyboard

e. palmrest

3. Perform the following steps to remove the LED board:

a. Disconnect the LED-board cable from its connector on the LED board [1] [2].

b. Remove the screw that secures the LED board to the palmrest [3].

c. Remove the LED board from the palmrest [4].

Installing the LED Board

1. Insert the LED board into its slot on the palmrest.

2. Tighten the screw that secures the LED board to the palmrest.

3. Connect the LED-board cable to its connector on the LED board.

4. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. battery

e. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the Power-Connector Port

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard lattice

d. keyboard

e. palmrest

f. display-hinge cap

g. display assembly

3. Disconnect the power-connector port cable from its connector on the system board.

4. Perform the following steps:

a. Flip the computer.

b. Remove the screw to release the metal bracket on the power-connector port [1] [2].

c. Lift and remove the power-connector port from the computer [3].

Installing the power-connector port

1. Insert the power-connector port into its place on the computer.

2. Place the metal bracket on the power-connector port and tighten the screw to secure the power-

connector port to the computer.

3. Flip the computer.

4. Route the power-connector port cable to its routing channels and connect the power-connector

port cable to its connector on the system board.

5. Install the:

a. display assembly

b. display-hinge cap

c. palmrest

d. keyboard

e. keyboard lattice

f. battery

g. base cover

6. Follow the procedures in After Working Inside Your Computer.

Removing the WLAN Card / WiGig Card

NOTE: WiGig card is optional.

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the base cover.

3. Perform the following steps to remove the WLAN card:

a. Disconnect the WLAN cables from their connectors on the WLAN card [1].

b. Remove the screw that secures the WLAN card to the computer [2].

4. Remove the WLAN card from the computer.

Installing the WLAN Card / WiGig Card

1. Place the WLAN card into its slot on the computer.

2. Tighten the screw to secure the WLAN card to the computer.

3. Connect the WLAN cables to their connectors on the WLAN Card.

4. Install the base cover.

5. Follow the procedures in After Working Inside Your Computer.

Removing the WWAN Card

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the base cover.

3. Perform the following steps to remove the WWAN card:

a. Disconnect the WWAN cables from their connectors on the WWAN card [1].

b. Remove the screw that secures the WWAN card to the computer [2].

4. Remove the WWAN card from the computer.

Installing the WWAN Card

1. Place the WWAN card into its slot on the computer.

2. Tighten the screw to secure the WWAN card to the computer.

3. Connect the WWAN cables to their connectors on the WWAN Card.

4. Install the base cover.

5. Follow the procedures in After Working Inside Your Computer.

Removing the Display-Hinge Brackets

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. hard-drive assembly

e. keyboard trim

f. keyboard

g. palmrest

3. Remove the screws that secure the display-hinge brackets to the back of the computer.

4. Open the display and perform the following steps:

a. Remove the screws that secure the display-hinge brackets to the front of the computer [1].

b. Pull the display-hinge brackets to remove from the computer [2].

Installing the Display-Hinge Brackets

1. Insert the display-hinge brackets into their slots on the computer.

2. Tighten the screws at the front and back of the computer to secure the display-hinge brackets.

3. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. hard-drive assembly

e. memory

f. battery

g. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the Display Assembly

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

d. keyboard

e. palmrest

f. display-hinge brackets

3. Disconnect the WLAN and WWAN cables from their connectors [1] and release the cables through

their routing channels [2].

4. Disconnect the display cable from the system board. To disconnect the display cable:

a. Remove the screw that secures the display-cable bracket to the computer [1].

b. Remove the display-cable bracket to access the display cable [2].

c. Disconnect the display cable from the system board [3].

5. Release the display cable from its routing channel.

6. Remove the screws that secure the display assembly [1] and lift the display assembly to remove it

from the computer [2].

Installing the Display Assembly

1. Place the display assembly to align with the screw holders on the computer.

2. Route the WWAN, WLAN, and display cables through their routing channels.

3. Tighten the screws to secure the display assembly to the computer.

4. Connect the WWAN and WLAN cables to their connectors.

5. Connect the display cable to the system board, place the display-cable bracket over the connector,

and tighten the screw to secure the display cable to the computer.

6. Install the:

a. display-hinge brackets

b. palmrest

c. keyboard

d. keyboard trim

e. battery

f. base cover

7. Follow the procedures in After Working Inside Your Computer.

Removing the Display Bezel

1. Follow the procedures in Before Working Inside Your Computer.

2. Pry the edges to release the display bezel from the display assembly.

3. Remove the display bezel from the display assembly.

Installing the Display Bezel

1. Place the display bezel on the display assembly.

2. Starting from the top corner, press on the display bezel and work around the entire bezel until it

clicks on to the display assembly.

3. Follow the procedures in After Working Inside Your Computer.

Removing the Display Panel

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. display bezel

3. Remove the screws that secure the display panel to the display assembly [1] and lift to flip the display

panel to access the eDP cable [2].

4. Peel the adhesive [1] to access the eDP cable [2].

5. Disconnect the eDP cable from its connector [1] and remove the display panel from the display

assembly [2].

Installing the Display Panel

1. Connect the eDP cable to its connector and fix the adhesive tape.

2. Place the display panel to align with the screw holders on the display assembly.

3. Tighten the screws to secure the display panel to the display assembly.

4. Install the:

a. display bezel

b. battery

c. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the Display Hinges

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. hard-drive assembly

e. keyboard trim

f. keyboard

g. palmrest

h. display-hinge brackets

i. display assembly

j. display bezel

3. Perform the following steps to remove the display hinges from the display assembly:

a. Remove the screws that secure the display hinges at both sides of the display assembly [1].

b. Remove the display hinges from the display assembly [2].

Installing the Display Hinges

1. Insert the display hinges into their slots on the display assembly.

2. Tighten the screws to secure the display hinge on both sides of the display assembly.

3. Install the:

a. display bezel

b. display assembly

c. display-hinge brackets

d. palmrest

e. keyboard

f. keyboard trim

g. hard-drive assembly

h. memory

i. battery

j. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the Camera

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. display bezel

d. display panel

3. Perform the following steps to remove the camera from the computer:

a. Lift the camera to release it from the adhesive [1].

b. Disconnect the camera cable from its connector [2].

c. Remove the camera from the computer [3].

Installing the Camera

1. Insert the camera to its place on the display assembly.

2. Connect the camera cable to its connector.

3. Install the:

a. display panel

b. display bezel

c. battery

d. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the eDP Cable

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. hard-drive assembly

e. keyboard trim

f. keyboard

g. palmrest

h. display-hinge brackets

i. display assembly

j. display bezel

k. display panel

3. Perform the following steps to remove the eDP cable from the computer:

a. Disconnect the eDP cable from its connector [1].

b. Peel the eDP cable [2] and remove the eDP cable from the computer [3].

Installing the eDP cable

1. Fix the eDP cable in its place on the display assembly.

2. Connect the eDP cable to its connector.

3. Install the:

a. display panel

b. display bezel

c. display assembly

d. display-hinge brackets

e. palmrest

f. keyboard

g. keyboard trim

h. hard-drive assembly

i. memory

j. battery

k. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the System Fan

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. keyboard trim

d. keyboard

e. palmrest

3. Disconnect the system-fan cable from its connector on the system board.

4. Perform the following steps to remove the system fan from the computer:

a. Remove the screws that secure the system fan to the computer [1].

b. Remove the system fan from the computer [2].

Installing the System Fan

1. Place the system fan into its slot on the computer.

2. Tighten the screws to secure the system fan to the computer.

3. Connect the system-fan cable to its connector on the system board.

4. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. battery

e. base cover

5. Follow the procedures in After Working Inside Your Computer.

Removing the Coin-Cell Battery

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. hard-drive assembly

e. keyboard trim

f. keyboard

g. palmrest

3. Perform the following steps to remove the coin-cell battery from the computer:

a. Disconnect the coin-cell battery cable from its connector on the system board [1].

b. Pry the coin-cell battery to remove it from the computer [2].

Installing the Coin-cell Battery

1. Insert the coin-cell battery into its place on the system board.

2. Connect the coin-cell battery cable to its connector on the system board.

3. Install the:

a. palmrest

b. keyboard

c. keyboard trim

d. hard-drive assembly

e. memory

f. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the System Board

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. SD card

b. base cover

c. battery

d. memory

e. hard-drive assembly

f. keyboard trim

g. keyboard

h. palmrest

i. display-hinge brackets

j. display assembly

k. system fan

3. Disconnect the following cables from the system board:

a. power-connector [1]

b. speaker [2]

c. coin-cell battery [3]

4. Remove the screws that secure the system board to the chassis [1] and push the system board to

release from its place.

5. Remove the system board from the chassis.

Installing the System Board

1. Place the system board to align with the screw holders on the computer.

2. Tighten the screws to secure the system board to the computer.

3. Connect the following cables to their connectors on the system board:

a. speaker

b. power-connector

c. coin-cell battery

4. Install the:

a. display assembly

b. display-hinge brackets

c. palmrest

d. keyboard

e. keyboard trim

f. hard-drive assembly

g. memory

h. battery

i. base cover

j. SD card

5. Follow the procedures in After Working Inside Your Computer.

Removing the Heatsink

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. keyboard trim

e. keyboard

f. palmrest

g. display-hinge brackets

h. display assembly

i. system fan

j. system board

3. Perform the following steps to remove the heatsink from the system board:

a. Remove the screws that secure the heatsink on the system board [1].

b. Remove the heatsink from the system board [2].

Installing the Heatsink

1. Place the heatsink on the system board and align it with the screw holders.

2. Tighten the screws to secure the heatsink to the system board.

3. Install the:

a. system board

b. system fan

c. display assembly

d. display-hinge brackets

e. palmrest

f. keyboard

g. keyboard trim

h. hard-drive assembly

i. memory

j. battery

k. base cover

4. Follow the procedures in After Working Inside Your Computer.

Removing the Speakers

1. Follow the procedures in Before Working Inside Your Computer.

2. Remove the:

a. base cover

b. battery

c. memory

d. hard-drive assembly

e. keyboard trim

f. keyboard

g. palmrest

h. display-hinge brackets

i. display assembly

j. system fan

3. Disconnect the speaker cable from its connector on the system board [1] and release the speaker

cables from their routing channels [2].

4. Perform the following steps to remove the speakers from the computer:

a. Remove the screws that secure the speakers to the computer [1].

b. Remove the speakers from the computer [2].

Installing the Speakers

1. Place the speakers into their slots on the computer.

2. Tighten the screws to secure the speakers to the computer.

3. Route the speaker cables through their routing channels.

4. Connect the speaker cable to its connector on the system board.

5. Install the:

a. system fan

b. display assembly

c. display-hinge brackets

d. palmrest

e. keyboard

f. keyboard trim

g. hard-drive assembly

h. memory

i. battery

j. base cover

6. Follow the procedures in After Working Inside Your Computer.

System Setup Options

NOTE: Depending on the computer and its installed devices, the items listed in this section may or

may not appear.

Table 1. General

Option Description

System

Information

This section lists the primary hardware features of your computer.

• System Information: Displays BIOS Version, Service Tag, Asset Tag, Ownership

Tag, Ownership Date, Manufacture Date, and the Express Service Code.

• Memory Information: Displays Memory Installed, Memory Available, Memory

Speed, Memory Channels Mode, Memory Technology, DIMM A Size, DIMM B Size,

• Processor Information: Displays Processor Type, Core Count, Processor ID,

Current Clock Speed, Minimum Clock Speed, Maximum Clock Speed, Processor

L2 Cache, Processor L3 Cache, HT Capable, and 64-Bit Technology.

• Device Information: Displays Primary Hard Drive, Dock eSATA Device, LOM MAC

Address, Video Controller, Video BIOS Version, Video Memory, Panel Type, Native

Resolution, Audio Controller, Wi-Fi Device, WiGig Device, Cellular Device,

Bluetooth Device.

Battery

Information

Displays the battery status and the type of AC adapter connected to the computer

Boot Sequence Boot Sequence Allows you to change the order in which

the computer attempts to find an

operating system. The options are:

• UEFI: LITEON IT LCS-256L9S-11 2.5

7MM 256 GB

Boot List Option Allows you to change the boot list option.

• Legacy

• UEFI

Advanced Boot

Options

This option allows you the legacy option ROMs to load. By default, the Enable Legacy

Option ROMs is disabled.

Date/Time Allows you to change the date and time.

Table 2. System Configuration

Option Description

Integrated NIC Allows you to configure the integrated network controller. The options

are:

• Disabled

• Enabled

Option Description

• Enabled w/PXE: This option is enabled by default.

Parallel Port Allows you to configure the parallel port on the docking station. The

options are:

• Disabled

• AT: This option is enabled by default.

• PS2

• ECP

Serial Port Allows you to configure the integrated serial port. The options are:

• Disabled

• COM1: This option is enabled by default.

• COM2

• COM3

• COM4

SATA Operation Allows you to configure the internal SATA hard-drive controller. The

options are:

• Disabled

• AHCI

• RAID On: This option is enabled by default.

Drives Allows you to configure the SATA drives on board. All drives are enabled

by default. The options are:

• SATA-0

• SATA-1

• SATA-2

• SATA-3

SMART Reporting This field controls whether hard drive errors for integrated drives are

reported during system startup. This technology is part of the SMART

(Self Monitoring Analysis and Reporting Technology) specification. This

option is disabled by default.

• Enable SMART Reporting

USB Configuration This field configures the integrated USB controller. If Boot Support is

enabled, the system is allowed to boot any type of USB Mass Storage

Devices (HDD, memory key, floppy).

If USB port is enabled, device attached to this port is enabled and

available for OS.

If USB port is disabled, the OS cannot see any device attached to this

port.

• Enable Boot Support

• Enable External USB Port

• Enable USB3.0 Controller

Option Description

NOTE: USB keyboard and mouse always work in the BIOS setup

irrespective of these settings.

USB PowerShare This field configures the USB PowerShare feature behavior. This option

allows you to charge external devices using the stored system battery

power through the USB PowerShare port.

Audio This field enables or disables the integrated audio controller. By default,

the Enable Audio option is selected.

Keyboard Illumination This field lets you choose the operating mode of the keyboard

illumination feature.

The keyboard brightness level can be set from 0% to 100%

• Disabled

• Dim

• Bright

This option is disabled by default.

Keyboard Backlight with AC The Keyboard Backlight with AC option does not affect the main

keyboard illumination feature. Keyboard Illumination will continue to

support the various illumination levels. This field has an effect when the

backlight is enabled.

Unobtrusive Mode This option, when enabled, pressing Fn+F7 turns off all light and sound

emissions in the system. To resume normal operation, press Fn+F7

again. This option is disabled by default.

Miscellaneous Devices Allows you to enable or disable the following devices:

• Enable Microphone

• Enable Camera

• Enable Hard Drive Free Fall Protection

• Enable Media Card

• Disable Media Card

NOTE: All devices are enabled by default.

You can also enable or disable Media Card.

Table 3. Video

Option Description

LCD Brightness Allows you to set the display brightness depending up on the power

source (On Battery and On AC).

NOTE: The Video setting will only be visible when a video card is installed into the system.

Table 4. Security

Option Description

Admin Password Allows you to set, change, or delete the administrator (admin) password.

NOTE: You must set the admin password before you set the system

or hard drive password. Deleting the admin password automatically

deletes the system password and the hard drive password.

NOTE: Successful password changes take effect immediately.

Default Setting: Not set

System Password Allows you to set, change or delete the system password.

NOTE: Successful password changes take effect immediately.

Default Setting: Not set

Internal HDD-1 Password Allows you to set, change or delete the password on the system's

internal hard-disk drive.

NOTE: Successful password changes take effect immediately.

Default Setting: Not set

Strong Password Allows you to enforce the option to always set strong passwords.

Default Setting: Enable Strong Password is not selected.

NOTE: If Strong Password is enabled, Admin and System passwords

must contain at least one uppercase character, one lowercase

character and be at least 8 characters long.

Password Configuration Allows you to determine the minimum and maximum length of

Administrator and System passwords.

Password Bypass Allows you to enable or disable the permission to bypass the System and

the Internal HDD password, when they are set. The options are:

• Disabled

• Reboot bypass

Default Setting: Disabled

Password Change Allows you to enable the disable permission to the System and Hard

Drive passwords when the admin password is set.

Default Setting: Allow Non-Admin Password Changes is selected.

Non-Admin Setup Changes Allows you to determine whether changes to the setup options are

allowed when an Administrator Password is set. If disabled the setup

options are locked by the admin password.

TPM Security Allows you to enable the Trusted Platform Module (TPM) during POST.

Default Setting: The option is disabled.

Option Description

Computrace Allows you to activate or disable the optional Computrace software The

options are:

• Deactivate

• Disable

• Activate

NOTE: The Activate and Disable options will permanently activate or

disable the feature and no further changes will be allowed

Deactivate (default)

CPU XD Support Allows you to enable the Execute Disable mode of the processor.

Enable CPU XD Support (default)

OROM Keyboard Access Allows you to set an option to enter the Option ROM Configuration

screens using hotkeys during boot. The options are:

• Enable

• One Time Enable

• Disable

Default Setting: Enable

Admin Setup Lockout Allows you to prevent users from entering Setup when an Administrator

password is set.

Default Setting: Enable Admin Setup Lockout is not selected.

Table 5. Secure Boot

Option Description

Secure Boot Enable This option enables or disables the Secure Boot Feature.

• Disabled

• Enabled

Default Setting: The option is enabled.

Expert Key Management Allows you to manipulate the security key databases only if the system is

in Custom Mode. The Enable Custom Mode option is disabled by

default. The options are:

• PK

• KEK

• db

• dbx

If you enable the Custom Mode, the relevant options for PK, KEK, db,

and dbx appear. The options are:

•Save to File- Saves the key to a user-selected file

•Replace from File- Replaces the current key with a key from a user-

selected file

Option Description

•Append from File- Adds a key to the current database from a user-

selected file

•Delete- Deletes the selected key

•Reset All Keys- Resets to default setting

•Delete All Keys- Deletes all the keys

NOTE: If you disable the Custom Mode, all the changes made will

be erased and the keys will restore to default settings.

Table 6. Performance

Option Description

Multi Core Support This field specifies whether the process will have one or all cores

enabled. The performance of some applications will improve with the

additional cores. This option is enabled by default. Allows you to enable

or disable multi-core support for the processor. The installed processor

supports two cores. If you enable Multi Core Support, two cores will be

enabled. If you disable Multi Core Support, one core will be enabled.

• Enable Multi Core Support

Default Setting: The option is enabled.

Intel SpeedStep Allows you to enable or disable the Intel SpeedStep feature.

• Enable Intel SpeedStep

Default Setting: The option is enabled.

C-States Control Allows you to enable or disable the additional processor sleep states.

• C states

Default Setting: The option is enabled.

Intel TurboBoost Allows you to enable or disable the Intel TurboBoost mode of the

processor.

• Enable Intel TurboBoost

Default Setting: The option is enabled.

Hyper-Thread Control Allows you to enable or disable the Hyper-Threading in the processor.

• Disabled

• Enabled

Default Setting: The option is enabled.

Table 7. Power Management

Option Description

AC Behavior Allows you to enable or disable the computer from turning on

automatically when an AC adapter is connected.

Default Setting: Wake on AC is not selected.

Auto On Time Allows you to set the time at which the computer must turn on

automatically. The options are:

• Disabled (default)

• Every Day

• Weekdays

• Select Days

USB Wake Support Allows you to enable USB devices to wake the system from Standby.

NOTE: This feature is only functional when the AC power adapter is

connected. If the AC power adapter is removed during Standby, the

system setup will remove power from all of the USB ports to

conserve battery power.

• Enable USB Wake Support

Default Setting: The option is disabled.

Wireless Radio Control Allows you to enable or disable the feature that automatically switches

from wired or wireless networks without depending on the physical

connection.

• Control WLAN Radio

• Control WWAN Radio

Default Setting: The option is disabled.

Wake on LAN/WLAN Allows you to enable or disable the feature that powers on the computer

from the Off state when triggered by a LAN signal.

• Disabled: This option is enabled by default

• LAN Only

• WLAN Only

• LAN or WLAN

Block Sleep This option lets you block entering to sleep (S3 state) in Operating

System environment.

Block Sleep (S3 state) - This option is disabled by default.

Peak Shift This option enables you to minimize the AC power consumption during

the peak power times of day. After you enable this option, your system

runs only in battery even if the AC is attached.

Advanced Battery Charge

Configuration

This option enables you to maximize the battery health. By enabling this

option, your system uses the standard charging algorithm and other

techniques, during the non-work hours to improve the battery health.

Option Description

Disabled (default)

Primary Battery Charge

Configuration

Allows you to select the charging mode for the battery. The options are:

• Adaptive

• Standard - Fully charges your battery at a standard rate.

• ExpressCharge - The battery charges over a shorter period of time

using Dell’s fast charging technology. This option is enabled by

default.

• Primarily AC use

• Custom

If Custom Charge is selected, you can also configure Custom Charge

Start and Custom Charge Stop.

NOTE: All charging mode may not be available for all the batteries.

To enable this option, disable the Advanced Battery Charge

Configuration option.

Intel Smart Connect

Technology

This option, if enabled, periodically senses the nearby wireless

connections, while the system is in sleep state. You can use this option

to synchronize the email or other social media applications that are

open, when the system enters the sleep state.

Table 8. POST Behavior

Option Description

Adapter Warnings Allows you to enable or disable the system setup (BIOS) warning

messages when you use certain power adapters.

Default Setting: Enable Adapter Warnings

Keypad (Embedded) Allows you to choose one of two methods to enable the keypad that is

embedded in the internal keyboard.

• Fn Key Only: This option is enabled by default.

• By Numlock

NOTE: When setup is running, this option has no effect. Setup

works in Fn Key Only mode.

Mouse/Touchpad Allows you to define how the system handles mouse and touch pad

input. The options are:

• Serial Mouse

• PS2 Mouse

• Touchpad / PS-2 Mouse: This option is enabled by default.

Numlock Enable Allows you to enable the Numlock option when the computer boots.

Enable Network

This option is enabled by default.

Option Description

Fn Key Emulation Allows you to set the option where the <Scroll Lock> key is used to

simulate the <Fn> key feature.

Enable Fn Key Emulation (default)

Fn Lock Options Allows you to let hot key combinations <Fn> + <Esc> toggle the primary

behavior of F1–F12, between their standard and secondary functions. If

you disable this option, you cannot toggle dynamically the primary

behavior of these keys. The available options are:

• Fn Lock.

This option is selected by default.

• Lock Mode Disable / Standard

• Lock Mode Enable / Secondary

MEBx Hotkey Allows you to specify whether the MEBx Hotkey function should enable,

during the system boot.

Default Setting: Enable MEBx Hotkey

Fastboot Allows you to speed up the boot process by bypassing some of the

compatibility steps. The options are:

• Minimal

• Thorough (default)

• Auto

Extended BIOS POST Time Allows you to create an additional pre-boot delay. The options are:

• 0 seconds. This option is enabled by default.

• 5 seconds

• 10 seconds

Table 9. Virtualization Support

Option Description

Virtualization Allows you to enable or disable the Intel Virtualization Technology.

Enable Intel Virtualization Technology (default)

VT for Direct I/O Enables or disables the Virtual Machine Monitor (VMM) from utilizing the

additional hardware capabilities provided by Intel® Virtualization

technology for direct I/O.

Enable VT for Direct I/O - enabled by default.

Trusted Execution This option specifies whether a Measured Virtual Machine Monitor

(MVMM) can utilize the additional hardware capabilities provided by Intel

Trusted Execution Technology. The TPM virtualization Technology, and

Virtualization technology for direct I/O must be enabled to use this

feature.

Option Description

Trusted Execution - disabled by default

Table 10. Wireless

Option Description

Wireless Switch Allows to set the wireless devices that can be controlled

by the wireless switch. The options are:

• WWAN

• GPS (on WWAN Module)

• WLAN/WiGig

• Bluetooth

All the options are enabled by default.

NOTE: For WLAN and WiGig enable or disable

controls are tied together and they cannot be

enabled or disabled independently.

Wireless Device Enable Allows you to enable or disable the internal wireless

devices.

• WWAN / GPS

• WLAN / WiGig

• Bluetooth

All the options are enabled by default.

Table 11. Maintenance

Option Description

Service Tag Displays the Service Tag of your computer.

Asset Tag Allows you to create a system asset tag if an asset tag is not already set.

This option is not set by default.

Table 12. System Logs

Option Description

BIOS Events Allows you to view and clear the System Setup (BIOS) POST events.

Thermal Events Allows you to view and clear the System Setup (Thermal) events.

Power Events Allows you to view and clear the System Setup (Power) events.

Technical Specifications

NOTE: Offerings may vary by region. For more information regarding the configuration of your

computer, click Start (Start icon) → Help and Support, and then select the option to view

information about your computer.

NOTE: In Windows 8.1, navigate to Help and Support to view information about your computer.

Table 13. System Information

Feature Specification

Chipset Intel 4th Generation Processors / Intel 5th Generation Processors

DRAM bus width 64-bit

Flash EPROM SPI 32 Mbits, 64 Mbits

PCIe bus 100 MHz

External Bus Frequency PCIe Gen2 (5 GT/s)

Table 14. Processor

Feature Specification

Intel 4th Generation Processors Intel 5th Generation Processors

Types Intel Celeron, Core i3/ i5 Intel Celeron, Core i3/ i5 / i7

L3 cache

Celeron NA 2 MB

i3 3 MB 3 MB

i5 3 MB 3 MB

i7 NA 3 MB

Table 15. Memory

Feature Specification

Memory connector

Latitude 5250 up to two SODIMM slots

Latitude E5250 two SODIMM slots

Memory capacity

Intel 4th Generation Processors 4 GB or 8 GB

Feature Specification

Intel 5th Generation Processors 4 GB, 8 GB, or 16 GB

Memory type DDR3L SDRAM (1600 MHz)

Minimum memory 4 GB

Maximum memory

Intel 4th Generation Processors 8 GB

Intel 5th Generation Processors 16 GB

Table 16. Audio

Feature Specification

Type High-definition audio

Controller Realtek ALC3235

Stereo conversion Digital Audio-out through HDMI - up to 7.1 compressed

and un-compressed audio

Interface:

Internal high-definition audio codec

External Stereo headset / mic combo

Speakers two

Internal speaker amplifier 2 W (RMS) per channel

Volume controls hot keys

Table 17. Video

Feature Specification

Type integrated on system board, hardware accelerated

Controller:

UMA

Intel 4th Generation

Processors

• Celeron Intel HD Graphics

• i3, i5 Intel HD Graphics 4400

Intel 5th Generation

Processors

• Celeron Intel HD Graphics

• i3, i5, i7 Intel HD Graphics 5500

Data bus Integrated video

External display support • 19-pin HDMI connector

• 20-pin mDP connector

Table 18. Camera

Features Specification

Camera Resolution

HD Panel 1280 x 720 pixels

FHD Panel 1920 x 1080 pixels

Video Resolution (maximum)

HD Panel 1280 x 720 pixels

FHD Panel 1920 x 1080 pixels

Diagonal viewing angle 74°

Table 19. Communications

Features Specification

Network adapter 10/100/1000 Mb/s Ethernet (RJ-45)

Wireless internal wireless local area network (WLAN) and wireless

wide area network (WWAN).

NOTE: WWAN is optional.

Bluetooth 4.0

Table 20. Ports and Connectors

Features Specification

Audio Stereo headset / mic combo

Video • one 19-pin HDMI connector

• 20-pin mDP connector

Network adapter one RJ-45 connector

USB Three USB 3.0, One USB BC v1.2 compliant connector

Memory card reader supports up to SD4.0

Micro Subscriber Identity Module (uSIM)

card

one (optional)

NOTE: Removal of base cover is required.

Docking port one (optional)

Table 21. Contactless Smart Card

Feature Specification

Supported Smart Cards/Technologies BTO with USH

Table 22. Display

Feature Specification

Type Non-Touch HD Anti-Glare Touch FHD (E2E)

Dimensions:

Height 3.00 mm (0.12 inch) 5.95 mm (0.23 inch)

Width 300.40 mm x 181.40 mm (11.83 inches x

7.14 inches)

302.30 mm x 194.39 mm (11.89 inches x

7.65 inches)

Diagonal 317.50 mm (12.50 inches) 317.50 mm (12.50 inches)

Active area

(X/Y)

276.61 mm x 155.52 mm (10.89 inches x

6.12 inches)

276.61 mm x 155.52 mm

Maximum

resolution

1366 x 768 1920 x 1080

Maximum

Brightness

200 nits 300 nits

Refresh rate 60 Hz 60 Hz

Minimum

Viewing Angles:

Horizontal 40/40 80/80

Vertical 10/30 80/80

Pixel pitch 0.202 x 0.202 0.144 x 0.144

Table 23. Keyboard

Feature Specification

Backlit KB Non-Backlit KB

Number of keys United States: 106 keys, United Kingdom: 107 keys, Brazil: 109 keys, and

Japan: 110 keys

Table 24. Touchpad

Feature Specification

Active Area:

X-axis 99.50 mm

Y-axis 53.00 mm

Table 25. Battery

Feature

Type 3-Cell (38 Whr) 4-Cell (51 Whr)

Dimensions:

Feature

Depth 177.50 mm (6.98 inches) 233.00 mm (9.17 inches)

Height 7.05 mm (0.27 inch) 7.05 mm (0.27 inch)

Width 94.80 mm (3.73 inches) 94.80 mm (3.73 inches)

Weight 265 g (0.58 lb) 340 g (0.75 lb)

Voltage 11.1 VDC 7.4 VDC

Life span 300 discharge/charge cycles

Temperature range:

Operating • Charge: 0 °C to 50 °C

• Discharge: 0 °C to 70 °C

• Operating: 0° to 35° C (32° to 95° F)

Non-Operating - 40 °C to 65 °C (- 40 °F to 149 °F)

Coin-cell battery 3 V CR2032 lithium coin cell

Table 26. AC Adapter

Feature Specification

Type 65 W and 90 W

NOTE: 90 W is shipped only to

India.

Input voltage 100 VAC to 240 VAC

Input current (maximum) 1.5 A

Input frequency 50 Hz to 60 Hz

Output current 3.34 A and 4.62 A

Rated output voltage 19.5 +/– 1.0 VDC

Temperature range:

Operating 0 °C to 40 °C (32 °F to 104 °F)

Non-Operating –40 °C to 70 °C (–40 °F to 158 °F)

Table 27. Physical

Feature W/O Touch With Touch

Height

Front 20.50 mm (0.80 inch) 20.50 mm (0.80 inch)

Back 22.70 mm (0.89 inch) 24.60 mm (0.97 inch)

Width 310.50 mm (12.22 inches) 310.50 mm (12.22 inches)

Depth 212.80 mm (8.38 inches) 212.80 mm (8.38 inches)

Feature W/O Touch With Touch

Weight 3.44 lb (1.56 kg) 3.93 lb (1.78 kg)

Table 28. Environmental

Feature Specification

Temperature:

Operating 0 °C to 35 °C (32 °F to 95 °F)

Storage –40 °C to 65 °C (–40 °F to 149 °F)

Relative humidity

(maximum):

Operating 10 % to 90 % (non condensing)

Storage 5 % to 95 % (non condensing)

Altitude (maximum):

Operating 0 m to 3048 m (0 ft to 10,000 ft)

0° to 35°C

Non-Operating 0 m to 10,668 m (0 ft to 35,000 ft)

Airborne contaminant level G1 as defined by ISA-71.04–1985

Diagnostics

If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for

technical assistance. The purpose of running diagnostics is to test your computer's hardware without

requiring additional equipment or risking data loss. If you are unable to fix the problem yourself, service

and support personnel can use the diagnostics results to help you solve the problem.

Enhanced Pre-Boot System Assessment (ePSA)

Diagnostics

The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware.

The ePSA is embedded with the BIOS and is launched by the BIOS internally. The embedded system

diagnostics provides a set of options for particular devices or device groups allowing you to:

• Run tests automatically or in an interactive mode

• Repeat tests

• Display or save test results

• Run thorough tests to introduce additional test options to provide extra information about the failed

device(s)

• View status messages that inform you if tests are completed successfully

• View error messages that inform you of problems encountered during testing

CAUTION: Use the system diagnostics to test only your computer. Using this program with other

computers may cause invalid results or error messages.

NOTE: Some tests for specific devices require user interaction. Always ensure that you are present

at the computer terminal when the diagnostic tests are performed.

You can launch the ePSA diagnostics by two ways:

1. Power-on the computer.

2. As the computer boots, press the <F12> key as the Dell logo appears.

3. On the boot menu screen, select the Diagnostics option.

The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the

computer. The diagnostics starts running the tests on all the detected devices.

4. If you wish to run a diagnostic test on a specific device, press <Esc> and click Yes to stop the

diagnostic test.

5. Select the device from the left pane and click Run Tests

6. If there are any issues, error codes are displayed.

Note the error code and contact Dell.

1. Shutdown the computer.

2. Press and hold the <fn> key, while pressing the power button, and then release both.

The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the

computer. The diagnostics starts running the tests on all the detected devices.

3. On the boot menu screen, select the Diagnostics option.

The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the

computer. The diagnostics starts running the tests on all the detected devices.

4. If you wish to run a diagnostic test on a specific device, press <Esc> and click Yes to stop the

diagnostic test.

5. Select the device from the left pane and click Run Tests

6. If there are any issues, error codes are displayed.

Note the error code and contact Dell.

Device status lights

Table 29. Device Status Lights

Icon Name Description

Power

status

light

Turns on when you turn on the computer and blinks when the computer is in a

power management mode.

Hard

drive

status

light

Turns on when the computer reads or writes data.

Battery

charge

indicator

Turns on steadily or blinks to indicate battery charge status.

WiFi

indicator

Turns on when wireless networking is enabled.

The device status LEDs are usually located either on the top or left side of the keyboard. They display the

storage, battery and wireless devices connectivity and activity. Apart from that they can be useful as a

diagnostic tool when there's a possible failure to the system.

NOTE: The position of the power status light may vary depending on the system.

The following table lists how to read the LED codes when possible errors occur.

Table 30. LED Lights

Storage LED Power LED Wireless LED Fault Description

Blinking Solid Solid A possible processor failure has occurred.

Solid Blinking Solid The memory modules are detected but encountered

an error.

Blinking Blinking Blinking A system board failure has occurred.

Storage LED Power LED Wireless LED Fault Description

Blinking Blinking Solid A possible graphics card/video failure has occurred.

Blinking Blinking Off System failed on hard drive initialization OR System

failed in Option ROM initialization.

Blinking Off Blinking The USB controller encountered a problem during

initialization.

Solid Blinking Blinking No memory modules are installed/detected.

Blinking Solid Blinking The display encountered a problem during

initialization.

Off Blinking Blinking The modem is preventing the system from completing

POST

Off Blinking Off Memory failed to initialize or memory is unsupported.

Battery Status Lights

If the computer is connected to an electrical outlet, the battery light operates as follows:

Alternately blinking

amber light and

white light

An unauthenticated or unsupported non-Dell AC adapter is attached to your

laptop.

Alternately blinking

amber light with

steady white light

Temporary battery failure with AC adapter present.

Constantly blinking

amber light

Fatal battery failure with AC adapter present.

Light off Battery in full charge mode with AC adapter present.

White light on Battery in charge mode with AC adapter present.

Contacting Dell

NOTE: If you do not have an active Internet connection, you can find contact information on your

purchase invoice, packing slip, bill, or Dell product catalog.

Dell provides several online and telephone-based support and service options. Availability varies by

country and product, and some services may not be available in your area. To contact Dell for sales,

technical support, or customer service issues:

1. Go to dell.com/support.

2. Select your support category.

3. Verify your country or region in the Choose a Country/Region drop-down list at the bottom of the

page.

4. Select the appropriate service or support link based on your need.

Table of Contents

DELL E5250 User Manual

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