Dell 3050 Manuel de service

Inspiron Micro Desktop3000 SeriesService ManualComputer Model: Inspiron 3050Regulatory Model: D12URegulatory Type: D12U001

After working inside your computerCAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.1 Replace all screws

Technical overviewWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Be

5 memory module 6 brackets (2)System-board components (top view)1 memory-module slot 2 processor-fan cable connector (CPU FAN)3 processor12

System-board components (bottom view)1 solid-state drive slot (NGF_SSD) 2 CMOS and password reset jumper (CMOS+PW)3 wireless-card slot (NGF_WLAN) 4 co

Removing the base coverWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps

2 Remove the screws that secure the base cover to the top-cover assembly.1 screws (4) 2 base cover3 Hold the base cover and gently loosen it to rele

4 Lift the base cover off the top-cover assembly.1 base cover 2 top-cover assembly3 tabs (4)16

Replacing the base coverWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps

Removing the memory moduleWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the ste

2 Slide and remove the memory module from the memory-module slot.1 memory-module slot 2 securing clips (2)3 memory module19

Notes, cautions, and warningsNOTE: A NOTE indicates important information that helps you make better use of your computer.CAUTION: A CAUTION indicates

Replacing the memory moduleWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the st

2 Slide the memory module firmly into the slot at an angle and gently press the memory module down until it clicks into place.NOTE: If you do not hea

Post-requisitesReplace the base cover.22

Removing the processor fanWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the ste

2 Lift the brackets off the system board.1 screws (4) 2 brackets (2)3 Remove the screws that secure the processor fan to the system board.24

4 Disconnect the processor-fan cable from the system board and lift the processor fan off the system board.1 screws (2) 2 processor fan3 processor fa

Replacing the processor fanWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the st

Removing the processor heat-sinkWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow t

2 Lift the processor heat-sink off system board.1 processor heat-sink 2 captive screws (4)28

Replacing the processor heat-sinkWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow

ContentsBefore working inside your computer...7Before you begin ...

Removing the wireless cardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the ste

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Remove the s

5 Slide and remove the wireless card from the wireless-card slot.1 wireless-card bracket 2 antenna cables (2)3 screw 4 wireless card5 wireless-card s

Replacing the wireless cardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the st

3 Press the other end of the wireless card down and connect the antenna cables to the wireless card.The following table provides the antenna-cable co

5 Align the screw hole on the wireless-card bracket with the screw hole on the wireless card and replace the screw that secures the wireless-card bra

Removing the coin-cell batteryWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Disconnect t

3 Peel off the coin-cell battery from the system board.1 coin-cell battery connector 2 coin-cell battery cable3 coin-cell battery38

Replacing the coin-cell batteryWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow th

Replacing the processor fan... 26Procedure...

Removing the solid-state driveWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Using a plas

3 Slide and lift the solid-state drive off the system-board assembly.1 securing tab 2 plastic scribe3 solid-state drive 4 solid-state drive slot42

Replacing the solid-state driveWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow th

Removing the hard driveWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Using your f

5 Slide and lift the hard-drive assembly off the hard-drive bay.1 securing tabs (2) 2 hard-drive cable3 hard-drive assembly 4 hard-drive bay5 screws

6 Disconnect the interposer from the hard drive.1 interposer 2 hard drive47

Replacing the hard driveWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps

Removing the system boardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the step

Replacing the solid-state drive...43Procedure...

1 system board50

Replacing the system boardWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the ste

Removing the top-cover assemblyWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow th

4 Lift the top-cover assembly and keep it aside.1 top-cover assembly 2 antenna cables (2)3 wireless-card bracket 4 screw1 top-cover assembly53

Replacing the top-cover assemblyWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow t

BIOS setup programOverviewCAUTION: Unless you are an expert computer user, do not change the settings in the BIOS setup program. Certain changes can m

Clearing Forgotten PasswordsWARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the s

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Locate the C

3 Remove the jumper plug and replace it on the password jumper-pins.1 jumper plug 2 CMOS jumper-pins3 password jumper-pins4 Follow the procedure fro

Post-requisites1 Follow the procedure from step 4 to step 5 in "Replacing the processor fan”.2 Replace the base cover.Clearing CMOS SettingsWAR

Post-requisites... 59Clearing CMOS Settings...

Procedure1 Carefully lift the system-board assembly and turn it over.1 top-cover assembly 2 system-board assembly3 alignment posts (4)2 Locate the C

3 Remove the jumper plug and replace it on the CMOS jumper-pins.1 jumper plug 2 CMOS jumper-pins3 password jumper-pins4 Follow the procedure from st

Post-requisites1 Follow the procedure from step 4 to step 5 in "Replacing the processor fan”.2 Replace the base cover.62

Flashing the BIOSYou may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS:1 Turn o

Getting help and contacting DellSelf-help resourcesYou can get information and help on Dell products and services using these online self-help resourc

NOTE: Availability varies by country and product, and some services may not be available in your country.NOTE: If you do not have an active internet c

Before working inside your computerCAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contact

Safety instructionsUse the following safety guidelines to protect your computer from potential damage and ensure your personal safety.WARNING: Before

CAUTION: Press and eject any installed card from the media-card reader.Recommended toolsThe procedures in this document may require the following tool