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Dell Inspiron 1425 Service Manual

Dell Inspiron 1425 Manual

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Dell Inspiron 1425 | Service Manual - Page 1
Dell™ Inspiron™ M4110 Service Manual Regulatory model: P20G Regulatory type: P20G002
Dell Inspiron 1425 | Service Manual - Page 2
A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property . © 2011 Dell Inc. All rights reserved. Trademarks used in this text: Dell™, the DELL logo, and Inspiron™ are trademarks of Dell Inc.; Microsoft®,
Dell Inspiron 1425 | Service Manual - Page 3
9 Before Working Inside Your Computer 10 2 Top Cover 13 Removing the Top Cover 13 Replacing the Top Cover 14 3 Battery 15 Removing the Battery 15 Replacing the Battery 16 4 Module Cover 17 Removing the Module Cover 17 Replacing the Module Cover 18 5 Optical Drive 19 Removing the
Dell Inspiron 1425 | Service Manual - Page 4
Replacing the Optical Drive 21 6 Memory Module(s 23 Removing the Memory Module(s 23 Replacing the Memory Module(s 24 7 Keyboard 27 Removing the Keyboard 27 Replacing the Keyboard 29 8 Palm-Rest Assembly 31 Removing the Palm-Rest Assembly 31 Replacing the Palm-Rest Assembly 34 9 Hot-Key
Dell Inspiron 1425 | Service Manual - Page 5
11 Wireless Mini-Card(s 45 Removing the Mini-Card(s 45 Replacing the Mini-Card(s 47 12 Thermal Fan 49 Removing the Thermal Fan 49 Replacing the Thermal Fan 50 13 Display 53 Display Assembly 53 Removing the Display Assembly 53 Replacing the Display Assembly 56 Display Bezel 57 Removing
Dell Inspiron 1425 | Service Manual - Page 6
Connector Board 73 Replacing the VGA Connector Board 74 17 System Board 77 Removing the System Board 77 Replacing the System Board 81 Entering the Service Tag in the BIOS 82 18 Speakers 83 Removing the Speakers 83 Replacing the Speakers 84 6 Contents
Dell Inspiron 1425 | Service Manual - Page 7
87 Removing the Coin-Cell Battery 87 Replacing the Coin-Cell Battery 88 20 Thermal Cooling Assembly 89 Removing the Thermal Cooling Assembly 89 Replacing the Thermal Cooling Assembly 90 21 Processor Module 91 Removing the Processor
Dell Inspiron 1425 | Service Manual - Page 8
Replacing the AC-Adapter Connector 102 25 Flashing the BIOS 105 8 Contents
Dell Inspiron 1425 | Service Manual - Page 9
1 Before You Begin This manual provides procedures for removing and installing components in your Small flat-blade screwdriver • Phillips screwdriver • Plastic scribe • BIOS executable update program available at support.dell.com Turning Off Your Computer CAUTION: To avoid losing data, save and
Dell Inspiron 1425 | Service Manual - Page 10
a component such as a processor by its edges, not by its pins. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: When you disconnect a cable, pull on its connector or
Dell Inspiron 1425 | Service Manual - Page 11
CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. 7 Remove the battery (see "Removing the Battery" on page 15). 8 Turn the computer top-side up, open the display, and press the power button to
Dell Inspiron 1425 | Service Manual - Page 12
12 Before You Begin
Dell Inspiron 1425 | Service Manual - Page 13
your computer). CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Top Cover 1 Follow the instructions in "Before You Begin" on page 9. 2 Press and hold the release button that secures
Dell Inspiron 1425 | Service Manual - Page 14
1 2 1 top cover 2 release button Replacing the Top Cover 1 Follow the instructions in "Before You Begin" on page 9. NOTE: Ensure that the Dell logo is facing towards the back of the computer while replacing the top cover. 2 Align the top cover to the display back cover. 3 Slide the
Dell Inspiron 1425 | Service Manual - Page 15
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. Removing the Battery 1 Follow the instructions in "Before You Begin" on page 9. 2 Shut down the computer and turn it
Dell Inspiron 1425 | Service Manual - Page 16
3 2 1 1 battery release latch 2 battery 3 battery lock latch Replacing the Battery 1 Follow the instructions in "Before You Begin" on page 9. 2 Slide the battery into the battery bay until it clicks into place. 3 Slide the battery lock latch to the lock position. 16 Battery
Dell Inspiron 1425 | Service Manual - Page 17
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Cover 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15).
Dell Inspiron 1425 | Service Manual - Page 18
Cover 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the tabs on the module cover with the slots on the computer base and gently snap the cover in place. 3 Tighten the captive screw that secures the module cover to the computer base. 4 Replace the battery (see "Replacing the
Dell Inspiron 1425 | Service Manual - Page 19
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15).
Dell Inspiron 1425 | Service Manual - Page 20
2 1 1 optical-drive assembly 2 screw 6 Remove the two screws that secure the optical-drive bracket to the optical drive. 7 Pull the optical-drive bezel to detach it from the optical drive. 20 Optical Drive
Dell Inspiron 1425 | Service Manual - Page 21
-drive bracket 4 optical-drive bezel Replacing the Optical Drive 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the tabs on "Replacing the Module Cover" on page 18). 7 Replace the battery (see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer, replace
Dell Inspiron 1425 | Service Manual - Page 22
22 Optical Drive
Dell Inspiron 1425 | Service Manual - Page 23
the Battery" on page 15) before working inside the computer. You can increase your computer memory by installing memory modules on the system board. See "Specifications" in your Setup Guide for information on the type of memory supported by your computer. NOTE: Memory modules purchased from Dell are
Dell Inspiron 1425 | Service Manual - Page 24
two connectors, install a memory module in the connector labeled "DIMM A" before you install a memory module in the connector labeled "DIMM B." 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the notch in the memory module with the tab in the memory-module connector. 3 Slide the
Dell Inspiron 1425 | Service Manual - Page 25
"Replacing the Module Cover" on page 18). 5 Replace the battery (see "Replacing the Battery" on page 16), or connect the AC adapter to your computer the computer boots, it detects the memory module(s) and automatically updates the system configuration information. To confirm the amount of memory
Dell Inspiron 1425 | Service Manual - Page 26
26 Memory
Dell Inspiron 1425 | Service Manual - Page 27
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Keyboard 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15
Dell Inspiron 1425 | Service Manual - Page 28
1 2 1 plastic scribe 2 keyboard CAUTION: Be extremely careful when removing and handling the keyboard. Failure to do so could result in scratching the display panel. 6 Ease the keyboard up until it clears off the palm rest. 7 Carefully turn the keyboard over and place it on the palm-rest assembly.
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1 2 1 keyboard cable 2 keyboard-cable connector Replacing the Keyboard 1 Follow the instructions in "Before You Begin" on page 9. 2 Slide the keyboard cable into the connector on the system board. Press down on the connector latch to secure
Dell Inspiron 1425 | Service Manual - Page 30
6 Replace the battery (see "Replacing the Battery" on page 16). 30 Keyboard
Dell Inspiron 1425 | Service Manual - Page 31
to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Palm-Rest Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15). 3 Remove the module cover
Dell Inspiron 1425 | Service Manual - Page 32
7 Remove the five screws on the palm-rest assembly. CAUTION: Pull on the plastic tab on top of the connectors to avoid damaging the connectors. 8 Lift the connector latches and pull the pull-tabs to disconnect the power-button cable, touch-pad cable, and hot-key board cable from the connectors on
Dell Inspiron 1425 | Service Manual - Page 33
2 3 1 touch-pad cable 3 hot-key board cable 1 2 power-button cable Palm-Rest Assembly 33
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CAUTION: Carefully separate the palm rest from the computer base to avoid damage to the palm rest. 9 Using a plastic scribe, carefully pry out the palm-rest assembly along the rear edge and then ease the palm-rest assembly from the computer base. 10 Lift the palm-rest assembly off the computer base.
Dell Inspiron 1425 | Service Manual - Page 35
over and replace the ten screws at the bottom of the computer. 9 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21 Replacing the Module Cover" on page 18). 11 Replace the battery (see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer,
Dell Inspiron 1425 | Service Manual - Page 36
36 Palm-Rest Assembly
Dell Inspiron 1425 | Service Manual - Page 37
to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Hot-Key Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15). 3 Remove the module cover
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3 hot-key board cable Replacing the Hot-Key Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the slots on 35). 6 Replace the keyboard (see "Replacing the Keyboard" on page 29). 7 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21. 8
Dell Inspiron 1425 | Service Manual - Page 39
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Hot-Key Board 39
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40 Hot-Key Board
Dell Inspiron 1425 | Service Manual - Page 41
to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Power Button Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15). 3 Remove the module cover
Dell Inspiron 1425 | Service Manual - Page 42
board 3 power-button board cable Replacing the Power Button Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the slots on the "Replacing the Keyboard" on page 29). 7 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21. 42 Power
Dell Inspiron 1425 | Service Manual - Page 43
8 Replace the module cover (see "Replacing the Module Cover" on page 18). 9 Replace the battery (see "Removing the Battery" on page 15). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do
Dell Inspiron 1425 | Service Manual - Page 44
44 Power Button Board
Dell Inspiron 1425 | Service Manual - Page 45
battery (see "Removing the Battery" on page 15) before working inside the computer. NOTE: Dell does not guarantee compatibility or provide support for Mini-Cards from sources other than Dell Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on
Dell Inspiron 1425 | Service Manual - Page 46
4 Follow the instructions from step 4 to step 5 in "Removing the Optical Drive" on page 19. 5 Remove the keyboard (see "Removing the Keyboard" on page 27). 6 Remove the palm-
Dell Inspiron 1425 | Service Manual - Page 47
more information, see "Protecting Against Electrostatic Discharge" in the safety information that shipped with your computer. Replacing the Mini-Card(s) 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the new Mini-Card from its packaging. CAUTION: Use firm and even pressure to
Dell Inspiron 1425 | Service Manual - Page 48
Cards supported by page 29). 9 Follow the instructions from step 4 to step 5 Replace the battery (see "Replacing the Battery" on drivers and utilities for your computer, as required. NOTE: If you are installing a communication card from a source other than Dell, you must install the appropriate drivers
Dell Inspiron 1425 | Service Manual - Page 49
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Fan 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15).
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4 3 2 1 1 screw 2 thermal fan 3 thermal fan connector 4 display cable Replacing the Thermal Fan 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the thermal fan on the computer base and replace the screw. 3 Connect the thermal fan cable to the
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6 Replace the keyboard (see "Replacing the Keyboard" on page 29). 7 Replace the battery (see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do
Dell Inspiron 1425 | Service Manual - Page 52
52 Thermal Fan
Dell Inspiron 1425 | Service Manual - Page 53
dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15
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6 Remove the keyboard (see "Removing the Keyboard" on page 27). 7 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31). 8 Loosen the display cable grounding screw. 9 Disconnect the display cable from the connector on the system board. 10 Disconnect the Mini-Card antenna
Dell Inspiron 1425 | Service Manual - Page 55
1 2 3 1 display cable grounding screw 3 Mini-Card antenna cables (4) 2 display-cable connector 11 Remove the four screws that secure the display assembly to the computer base. 12 Lift the display assembly off the computer base. Display 55
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Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the display assembly in position and replace the four screws that secure the display assembly to the computer base. 3 Route the display cable and Mini-Card antenna cables through the routing guides. 4 Connect the display
Dell Inspiron 1425 | Service Manual - Page 57
(see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Display Bezel Removing the Display Bezel 1 Follow the instructions in "Before You
Dell Inspiron 1425 | Service Manual - Page 58
1 1 display bezel Replacing the Display Bezel 1 Follow the instructions in "Before You Begin" on page 9. 2 Realign the display bezel over the display panel the Top Cover" on page 14). Display Panel Removing the Display Panel 1 Follow the instructions in "Before You Begin" on page 9. 58 Display
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Mini-Card(s) cables and remove the cables from the routing guides on the display cover. 6 Lift the display panel off the display cover. 1 2 3 1 display cover 2 display panel 3 screws (6) Replacing the Display Panel 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the screw holes
Dell Inspiron 1425 | Service Manual - Page 60
remain inside the computer. Failure to do so may result in damage to the computer. Display Cable Removing the Display Cable 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 53). 3 Remove the display bezel (see
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screws remain inside the computer. Failure to do so may result in damage to the computer. Hinge Caps Removing the Hinge Caps 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 53). 3 Remove the display bezel (see
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remain inside the computer. Failure to do so may result in damage to the computer. Display Panel Brackets Removing the Display Panel Brackets 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the display assembly (see "Removing the Display Assembly" on page 53). 62 Display
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) that secure the display panel brackets to the display panel. 1 2 1 display panel brackets (2) 2 screws (4) Replacing the Display Panel Brackets 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the screw holes on the display panel vbbrackets with the screw holes on the display
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6 Replace the display assembly (see "Replacing the Display Assembly" on page 56). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 64 Display
Dell Inspiron 1425 | Service Manual - Page 65
to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Camera Module 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15). 3 Remove the module cover
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12 Remove the camera module. 4 12 3 1 tape 2 camera cable 3 camera module 4 plastic scribe Replacing the Camera Module 1 Follow the instructions in "Before You Begin" on page 9. 2 Connect the camera cable to the connector on the camera module. 3 Adhere the tape that secures the camera cable
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Replace the keyboard (see "Replacing the Keyboard" on page 29). 9 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21 Replacing the Module Cover" on page 18). 11 Replace the battery (see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer
Dell Inspiron 1425 | Service Manual - Page 68
68 Camera Module
Dell Inspiron 1425 | Service Manual - Page 69
due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Hinge Cover 1 Follow the instructions in "Before
Dell Inspiron 1425 | Service Manual - Page 70
9 Release the two tabs that secure the hinge cover to the computer base. 1 1 tabs (2) 10 Lift the hinge cover off the computer base. 70 Hinge Cover
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1 hinge cover Replacing the Hinge Cover 1 Follow the instructions in "Before You Begin" on page 9. 2 Align on page 35). 6 Replace the keyboard (see "Replacing the Keyboard" on page 29). 7 Follow the instructions from step 4 to step 5 in "Replacing the Optical Drive" on page 21. 8 Replace the module
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CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 72 Hinge Cover
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dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the battery (see "Removing the Battery" on page 15).
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1 2 1 screw 2 display cable Replacing the VGA Connector Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Align the connector on the VGA connector board with the slot on the computer base. 3 Connect the display cable
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9 Replace the battery (see "Replacing the Battery" on page 16). CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. VGA Connector Board 75
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76 VGA Connector Board
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touching pins and contacts. Removing the System Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Press and eject any installed cards or blanks from the 8-in-1 media card reader. 3 Remove the battery (see "Removing the Battery" on page 15). 4 Remove the module cover (see "Removing
Dell Inspiron 1425 | Service Manual - Page 78
1 1 AC-adapter connector cable 8 Remove the keyboard (see "Removing the Keyboard" on page 27). 9 Remove the palm-rest assembly (see "Removing the Palm-Rest Assembly" on page 31). 10 Remove the thermal fan (see "Removing the Thermal Fan" on page 49). 11 Loosen the display cable grounding screw. 12
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1 2 3 1 display cable connector 3 speakers cable connector 2 display cable grounding screw 14 Lift the system board assembly to disconnect the connector on the system board from the connector on the I/O board. System Board 79
Dell Inspiron 1425 | Service Manual - Page 80
1 1 system board 15 Turn the system board over. 16 Remove the coin-cell battery (see "Removing the Coin-Cell Battery" on page 87). 17 Follow the instructions from step 3 to step 5 in "Removing the Hard-Drive Assembly" on page 95. 18 Remove the thermal cooling assembly (see "Removing the Thermal
Dell Inspiron 1425 | Service Manual - Page 81
(see "Replacing the Thermal Cooling Assembly" on page 90. 4 Follow the instructions from step 5 to step 7 in "Replacing the Hard-Drive Assembly" on page 97. 5 Replace the coin-cell battery (see "Replacing the Coin-Cell Battery" on page 88). 6 Turn the system board over. 7 Align the connectors
Dell Inspiron 1425 | Service Manual - Page 82
in the BIOS" on page 82). Entering the Service Tag in the BIOS 1 Ensure that the AC adapter is plugged in and that the main battery is installed properly. 2 Turn on the computer. 3 Press as soon as you see the Dell logo to enter the system setup program. 4 Navigate to the security
Dell Inspiron 1425 | Service Manual - Page 83
Damage due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Speakers 1 Follow the instructions in "Before
Dell Inspiron 1425 | Service Manual - Page 84
2 1 1 speakers (2) 2 speakers cable Replacing the Speakers 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the speakers on the computer base and route the speakers cable through the routing guides. 3 Follow the instructions from step 7 to step 20 in "Replacing the System Board" on
Dell Inspiron 1425 | Service Manual - Page 85
CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. Speakers 85
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86 Speakers
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Coin-Cell Battery 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 dell.com/regulatory_compliance. CAUTION: Only a certified service technician should
Dell Inspiron 1425 | Service Manual - Page 88
in "Before You Begin" on page 9. 2 Hold the coin-cell battery with the positive side up. 3 Slide the coin-cell battery into the slot and gently press until it snaps in place. 4 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81. CAUTION: Before turning
Dell Inspiron 1425 | Service Manual - Page 89
a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the Thermal Cooling Assembly 1 Follow the instructions in
Dell Inspiron 1425 | Service Manual - Page 90
the processor or the heat sink is replaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved. 1 Follow the instructions in "Before You Begin" on page 9. 2 Place the thermal cooling assembly on the system board. 3 Align the seven captive screws on the thermal
Dell Inspiron 1425 | Service Manual - Page 91
safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: To avoid
Dell Inspiron 1425 | Service Manual - Page 92
2 1 1 ZIF socket 2 ZIF-socket cam screw Replacing the Processor Module 1 Follow the instructions in "Before You Begin" on page 9. NOTE: If a new processor is installed, you will receive a new thermal-cooling assembly, which will include an affixed thermal
Dell Inspiron 1425 | Service Manual - Page 93
the processor module to the system board. 4 Replace the thermal cooling assembly (see "Replacing the Thermal Cooling Assembly" on page 90). 5 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81. CAUTION: Before turning on the computer, replace all screws and
Dell Inspiron 1425 | Service Manual - Page 94
94 Processor Module
Dell Inspiron 1425 | Service Manual - Page 95
or provide support for hard drives from sources other than Dell. NOTE: If you are installing a hard drive from a source other than Dell, you need to install an operating system, drivers, and utilities on the new hard drive. Removing the Hard-Drive Assembly 1 Follow the instructions in "Before
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4 Slide the hard-drive assembly in the direction shown in the illustration to disconnect it from the connector on the system board. 5 Lift the hard-drive assembly off the system board. 2 1 1 hard-drive assembly 2 screw 6 Remove the four screws that secure the hard-drive bracket to the hard drive. 7
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3 2 1 1 screws (4) 3 hard drive 2 hard-drive bracket Replacing the Hard-Drive Assembly 1 Follow the instructions in "Before You Begin" on page 9. 2 Remove the new hard drive from its packaging. Save the original packaging for storing or shipping the hard drive. 3
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8 Follow the instructions from step 6 to step 20 in "Replacing the System Board" on page 81. CAUTION: Before turning on the computer, replace all screws and ensure that no stray screws remain inside the computer. Failure to do so may result in damage to the computer. 98 Hard-Drive Assembly
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: To help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the I/O Board 1 Follow the instructions in "Before You Begin" on page 9. 2 Follow the instructions from step 2 to step 14 in "Removing the System
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assembly (see "Replacing the Display Assembly" on page 56). 6 Replace the Mini-Card(s) (see "Replacing the Mini-Card(s)" on page 47). 7 Follow the instructions from step 7 to step 20 in "Replacing the System Board" on page 81. CAUTION: Before turning on the computer, replace all screws and ensure
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help prevent damage to the system board, remove the main battery (see "Removing the Battery" on page 15) before working inside the computer. Removing the AC-Adapter Connector 1 Follow the instructions in "Before You Begin" on page 9. 2 Follow the instructions from step 2 to step 14 in "Removing the
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computer base. 4 Route the AC-adapter connector cable through the routing guides. 5 Replace the VGA connector board (see "Replacing the VGA Connector assembly (see "Replacing the Display Assembly" on page 56). 8 Follow the instructions from step 7 to step 20 in "Replacing the System Board" on page
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AC-Adapter Connector 103
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104 AC-Adapter Connector
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is available or when replacing the system board. To flash the BIOS: 1 Turn on the computer. 2 Go to support.dell.com/support/downloads. 3 Locate the BIOS update file for your computer: NOTE: The Service Tag for your computer is located on a label at the bottom of your computer. If you have your
Dell Inspiron 1425 | Service Manual - Page 106
8 Double-click the file icon on the desktop and follow the instructions on the screen. 106 Flashing the BIOS

Section	Page
Dell™ Inspiron™ N4110 Service Manual	1
Notes, Cautions, and Warnings	2
Contents	3
Before You Begin	9
Recommended Tools	9
Turning Off Your Computer	9
Before Working Inside Your Computer	10
2	13
Top Cover	13
Removing the Top Cover	13
1 Follow the instructions in \	13
2 Press and hold the release button that secures the top cover to the display back cover.	13
3 Slide and lift the top cover.	13
Replacing the Top Cover	14
1 Follow the instructions in \	14
2 Align the top cover to the display back cover.	14
3 Slide the top cover until it clicks into place. Ensure that there are no gaps between the top cover and display back cover.	14
3	15
Battery	15
Removing the Battery	15
1 Follow the instructions in \	15
2 Shut down the computer and turn it over.	15
3 Slide the battery lock latch until it clicks into place.	15
4 Slide the battery release latch to the unlock position.	15
5 Slide and lift the battery out of the battery bay.	15
Replacing the Battery	16
1 Follow the instructions in \	16
2 Slide the battery into the battery bay until it clicks into place.	16
3 Slide the battery lock latch to the lock position.	16
Module Cover	17
Removing the Module Cover	17
Replacing the Module Cover	18
Optical Drive	19
Removing the Optical Drive	19
Replacing the Optical Drive	21
Memory Module(s)	23
Removing the Memory Module(s)	23
Replacing the Memory Module(s)	24
7	27
Keyboard	27
Removing the Keyboard	27
1 Follow the instructions in \	27
2 Remove the battery (see \	27
3 Turn the computer over and open the display as far as possible.	27
4 Slide a plastic scribe between the slots on the keyboard and release the tabs on the palm rest.	27
5 Pry and lift the keyboard to disengage it from the tabs on the palm rest.	27
6 Ease the keyboard up until it clears off the palm rest.	28
7 Carefully turn the keyboard over and place it on the palm-rest assembly.	28
8 Lift the connector latch that secures the keyboard cable to the connector on the system board and disconnect the keyboard cable.	28
9 Lift the keyboard off the computer.	28
Replacing the Keyboard	29
1 Follow the instructions in \	29
2 Slide the keyboard cable into the connector on the system board. Press down on the connector latch to secure the keyboard cable to the connector on the system board.	29
3 Slide the tabs on the keyboard into the slots on the palm-rest assembly.	29
4 Gently press around the edges of the keyboard and slide it upwards to secure the keyboard under the tabs on the palm-rest assembly.	29
5 Close the display and turn the computer over.	29
6 Replace the battery (see \	30
8	31
Palm-Rest Assembly	31
Removing the Palm-Rest Assembly	31
1 Follow the instructions in \	31
2 Remove the battery (see \	31
3 Remove the module cover (see \	31
4 Follow the instructions from step 4 to step 5 in \	31
5 Remove the ten screws from the computer base.	31
6 Remove the keyboard (see \	31
7 Remove the five screws on the palm-rest assembly.	32
8 Lift the connector latches and pull the pull-tabs to disconnect the power-button cable, touch-pad cable, and hot-key board cable from the connectors on the system board.	32
9 Using a plastic scribe, carefully pry out the palm-rest assembly along the rear edge and then ease the palm-rest assembly from the computer base.	34
10 Lift the palm-rest assembly off the computer base.	34
11 Turn the palm-rest assembly over.	34
12 Remove the hot-key board (see \	34
13 Remove the power button board (see \	34
Replacing the Palm-Rest Assembly	35
1 Follow the instructions in \	35
2 Replace the power button board (see \	35
3 Replace the hot-key board (see \	35
4 Align the tabs on the palm-rest assembly with the slots on the computer base and gently snap the palm-rest assembly in place.	35
5 Slide the power-button cable, touch-pad cable, and hot-key board cable into the connectors on the system board and press down on the connector latches to secure them.	35
6 Replace the five screws on the palm-rest assembly.	35
7 Replace the keyboard (see \	35
8 Turn the computer over and replace the ten screws at the bottom of the computer.	35
9 Follow the instructions from step 4 to step 5 in \	35
10 Replace the module cover (see \	35
11 Replace the battery (see \	35
Hot-Key Board	37
Removing the Hot-Key Board	37
Replacing the Hot-Key Board	38
Power Button Board	41
Removing the Power Button Board	41
Replacing the Power Button Board	42
11	45
Wireless Mini-Card(s)	45
Removing the Mini-Card(s)	45
1 Follow the instructions in \	45
2 Remove the battery (see \	45
3 Remove the module cover (see \	45
4 Follow the instructions from step 4 to step 5 in \	46
5 Remove the keyboard (see \	46
6 Remove the palm-rest assembly (see \	46
7 Disconnect the two antenna cables from the Mini-Card(s).	46
8 Remove the screw that secures the Mini-Card(s) to the system board.	46
9 Lift the Mini-Card(s) off the computer base.	46
10 If you are removing the WLAN Mini-Card, detach it from the WLAN Mini-Card bracket.	47
Replacing the Mini-Card(s)	47
1 Follow the instructions in \	47
2 Remove the new Mini-Card from its packaging.	47
3 If you are replacing the WLAN Mini-Card, attach it to the WLAN Mini-Card bracket.	47
4 Insert the Mini-Card connector at a 45-degree angle into the system-board connector.	47
5 Press the other end of the Mini-Card down into the slot on the system board and replace the screw that secures the Mini-Card to the system board.	48
6 Connect the appropriate antenna cables to the Mini-Card you are installing. The following table provides the antenna cable color scheme for the Mini-Cards supported by your computer.	48
7 Replace the palm-rest assembly (see \	48
8 Replace the keyboard (see \	48
9 Follow the instructions from step 4 to step 5 in \	48
10 Replace the module cover (see \	48
11 Replace the battery (see \	48
12 Install the drivers and utilities for your computer, as required.	48
12	49
Thermal Fan	49
Removing the Thermal Fan	49
1 Follow the instructions in \	49
2 Remove the battery (see \	49
3 Remove the keyboard (see \	49
4 Remove the palm-rest assembly (see \	49
5 Disconnect the display cable from the connector on the system board.	49
6 Disconnect the thermal fan cable from the connector on the system board.	49
7 Remove the screw that secures the thermal fan to the computer base.	49
8 Lift the thermal fan off the system board.	49
Replacing the Thermal Fan	50
1 Follow the instructions in \	50
2 Place the thermal fan on the computer base and replace the screw.	50
3 Connect the thermal fan cable to the connector on the system board.	50
4 Connect the display cable to the connector on the system board.	50
5 Replace the palm-rest assembly (see \	50
6 Replace the keyboard (see \	51
7 Replace the battery (see \	51
13	53
Display	53
Display Assembly	53
Removing the Display Assembly	53
1 Follow the instructions in \	53
2 Remove the battery (see \	53
3 Remove the module cover (see \	53
4 Follow the instructions from step 4 to step 5 in \	53
5 Remove the two screws from the computer base.	53
6 Remove the keyboard (see \	54
7 Remove the palm-rest assembly (see \	54
8 Loosen the display cable grounding screw.	54
9 Disconnect the display cable from the connector on the system board.	54
10 Disconnect the Mini-Card antenna cables from the connectors on the Mini-Card(s) (see \	54
11 Remove the four screws that secure the display assembly to the computer base.	55
12 Lift the display assembly off the computer base.	55
Replacing the Display Assembly	56
1 Follow the instructions in \	56
2 Place the display assembly in position and replace the four screws that secure the display assembly to the computer base.	56
3 Route the display cable and Mini-Card antenna cables through the routing guides.	56
4 Connect the display cable to the connector on the system board.	56
5 Connect the Mini-Card antenna cables to the Mini-Cards(s) (see \	56
6 Tighten the display cable grounding screw.	56
7 Replace the palm-rest assembly (see \	57
8 Replace the keyboard (see \	57
9 Replace the two screws at the bottom of the computer.	57
10 Follow the instructions from step 4 to step 5 in \	57
11 Replace the module cover (see \	57
12 Replace the battery (see \	57
Display Bezel	57
Removing the Display Bezel	57
1 Follow the instructions in \	57
2 Remove the top cover (see \	57
3 Remove the display assembly (see \	57
4 Using your fingertips, carefully pry up the inside edge of the display bezel.	57
5 Remove the display bezel.	57
Replacing the Display Bezel	58
1 Follow the instructions in \	58
2 Realign the display bezel over the display panel and gently snap it into place.	58
3 Replace the display assembly (see \	58
4 Replace the top cover (see \	58
Display Panel	58
Removing the Display Panel	58
1 Follow the instructions in \	58
2 Remove the display assembly (see \	59
3 Remove the display bezel (see \	59
4 Remove the six screws that secure the display panel to the display cover.	59
5 Note the routing of the display cable and Mini-Card(s) cables and remove the cables from the routing guides on the display cover.	59
6 Lift the display panel off the display cover.	59
Replacing the Display Panel	59
1 Follow the instructions in \	59
2 Align the screw holes on the display panel with the screw holes on the display cover and replace the six screws.	59
3 Route the display cable through the routing guides on the display cover.	59
4 Replace the display bezel (see \	59
5 Replace the display assembly (see \	59
Display Cable	60
Removing the Display Cable	60
1 Follow the instructions in \	60
2 Remove the display assembly (see \	60
3 Remove the display bezel (see \	60
4 Remove the display panel (see \	60
5 Turn the display panel over and place it on a clean surface.	60
6 Lift the tape that secures the display cable to the connector on the display panel and disconnect the display cable.	60
Replacing the Display Cable	61
1 Follow the instructions in \	61
2 Connect the display cable to the connector on the display panel and secure it with the tape.	61
3 Turn the display panel over and place it on the display cover.	61
4 Replace the display panel (see \	61
5 Replace the display bezel (see \	61
6 Replace the display assembly (see \	61
Hinge Caps	61
Removing the Hinge Caps	61
1 Follow the instructions in \	61
2 Remove the display assembly (see \	61
3 Remove the display bezel (see \	61
4 Remove the six screws that secure the display panel to the display cover.	61
5 Turn the display panel over and keep it on a clean surface.	61
6 Press both sides of each hinge cap and lift the hinge caps out of the display hinges.	61
Replacing the Hinge Caps	62
1 Follow the instructions in \	62
2 Align the tabs on the hinge caps with the slots on the display panel brackets and snap them into place.	62
3 Turn the display panel over and place it on the display cover.	62
4 Replace the six screws that secure the display panel to the display cover.	62
5 Replace the display bezel (see \	62
6 Replace the display assembly (see \	62
Display Panel Brackets	62
Removing the Display Panel Brackets	62
1 Follow the instructions in \	62
2 Remove the display assembly (see \	62
3 Remove the display bezel (see \	63
4 Remove the hinge caps (see \	63
5 Remove the four screws (two on each side) that secure the display panel brackets to the display panel.	63
Replacing the Display Panel Brackets	63
1 Follow the instructions in \	63
2 Align the screw holes on the display panel vbbrackets with the screw holes on the display panel.	63
3 Replace the four screws (two on each side) that secure the display-panel brackets to the display panel.	63
4 Replace the hinge caps (see \	63
5 Replace the display bezel (see \	63
6 Replace the display assembly (see \	64
Camera Module	65
Removing the Camera Module	65
Replacing the Camera Module	66
Hinge Cover	69
Removing the Hinge Cover	69
Replacing the Hinge Cover	71
VGA Connector Board	73
Removing the VGA Connector Board	73
Replacing the VGA Connector Board	74
17	77
System Board	77
Removing the System Board	77
1 Follow the instructions in \	77
2 Press and eject any installed cards or blanks from the 8-in-1 media card reader.	77
3 Remove the battery (see \	77
4 Remove the module cover (see \	77
5 Remove the memory module(s) (see \	77
6 Follow the instructions from step 4 to step 5 in \	77
7 Disconnect the AC-adapter connector cable from the connector on the system board.	77
8 Remove the keyboard (see \	78
9 Remove the palm-rest assembly (see \	78
10 Remove the thermal fan (see \	78
11 Loosen the display cable grounding screw.	78
12 Disconnect the display cable and speakers cable from the connectors on the system board.	78
13 Remove the five screws that secure the system board to the computer base.	78
14 Lift the system board assembly to disconnect the connector on the system board from the connector on the I/O board.	79
15 Turn the system board over.	80
16 Remove the coin-cell battery (see \	80
17 Follow the instructions from step 3 to step 5 in \	80
18 Remove the thermal cooling assembly (see \	80
19 Remove the processor module (see \	80
Replacing the System Board	81
1 Follow the instructions in \	81
2 Replace the processor module (see \	81
3 Replace the thermal cooling assembly (see \	81
4 Follow the instructions from step 5 to step 7 in \	81
5 Replace the coin-cell battery (see \	81
6 Turn the system board over.	81
7 Align the connectors on the system board with the slots on the computer base and place it in position.	81
8 Gently press the system board to connect the connector on the system board to the connector on the I/O board.	81
9 Replace the five screws that secure the system board to the computer base.	81
10 Connect the display cable and speakers cable to the connectors on the system board.	81
11 Tighten the display cable grounding screw.	81
12 Replace the thermal fan (see \	81
13 Replace the palm-rest assembly (see \	81
14 Replace the keyboard (see \	81
15 Connect the AC-adapter connector cable to the connector on the system board.	81
16 Follow the instructions from step 4 to step 5 in \	81
17 Replace the memory module(s) (see \	81
18 Replace the module cover (see \	81
19 Replace the battery (see \	81
20 Replace any cards or blanks removed from the 8-in-1 media card reader.	82
21 Turn on the computer.	82
22 Enter the service tag (see \	82
Entering the Service Tag in the BIOS	82
1 Ensure that the AC adapter is plugged in and that the main battery is installed properly.	82
2 Turn on the computer.	82
3 Press <F2> as soon as you see the Dell logo to enter the system setup program.	82
4 Navigate to the security tab and enter the service tag in the Set Service Tag field.	82
18	83
Speakers	83
Removing the Speakers	83
1 Follow the instructions in \	83
2 Follow the instructions from step 2 to step 14 in \	83
3 Note the speakers cable routing and lift the left and right speakers along with the its cable from the computer base.	83
Replacing the Speakers	84
1 Follow the instructions in \	84
2 Place the speakers on the computer base and route the speakers cable through the routing guides.	84
3 Follow the instructions from step 7 to step 20 in \	84
19	87
Coin-Cell Battery	87
Removing the Coin-Cell Battery	87
1 Follow the instructions in \	87
2 Follow the instructions from step 2 to step 15 in \	87
3 Use a plastic scribe and gently pry the coin-cell out of the battery socket on the system board.	87
4 Lift the coin-cell battery out of the system-board socket.	87
Replacing the Coin-Cell Battery	88
1 Follow the instructions in \	88
2 Hold the coin-cell battery with the positive side up.	88
3 Slide the coin-cell battery into the slot and gently press until it snaps in place.	88
4 Follow the instructions from step 6 to step 20 in \	88
Thermal Cooling Assembly	89
Removing the Thermal Cooling Assembly	89
Replacing the Thermal Cooling Assembly	90
21	91
Processor Module	91
Removing the Processor Module	91
1 Follow the instructions in \	91
2 Follow the instructions from step 2 to step 15 in \	91
3 Remove the thermal cooling assembly (see \	91
4 To loosen the ZIF socket, use a small, flat-blade screwdriver and rotate the ZIF-socket cam screw counterclockwise until it comes to the cam stop.	91
5 Lift the processor module from the ZIF socket.	91
Replacing the Processor Module	92
1 Follow the instructions in \	92
2 Align the pin-1 corner of the processor module with the pin-1 corner of the ZIF socket, then insert the processor module.	92
3 Tighten the ZIF socket by turning the cam screw clockwise to secure the processor module to the system board.	93
4 Replace the thermal cooling assembly (see \	93
5 Follow the instructions from step 6 to step 20 in \	93
22	95
Hard-Drive Assembly	95
Removing the Hard-Drive Assembly	95
1 Follow the instructions in \	95
2 Follow the instructions from step 2 to step 15 in \	95
3 Remove the screw that secures the hard-drive assembly to the system board.	95
4 Slide the hard-drive assembly in the direction shown in the illustration to disconnect it from the connector on the system board.	96
5 Lift the hard-drive assembly off the system board.	96
6 Remove the four screws that secure the hard-drive bracket to the hard drive.	96
7 Lift the hard drive away from the hard-drive bracket.	96
Replacing the Hard-Drive Assembly	97
1 Follow the instructions in \	97
2 Remove the new hard drive from its packaging.	97
3 Place the hard drive in the hard-drive bracket.	97
4 Replace the four screws that secure the hard-drive bracket to the hard drive.	97
5 Place the hard-drive assembly on the system board.	97
6 Slide the hard-drive assembly to connect it to the connector on the system board.	97
7 Replace the screw that secures the hard-drive assembly to the system board.	97
8 Follow the instructions from step 6 to step 20 in \	98
I/O Board	99
Removing the I/O Board	99
Replacing the I/O Board	100
24	101
AC-Adapter Connector	101
Removing the AC-Adapter Connector	101
1 Follow the instructions in \	101
2 Follow the instructions from step 2 to step 14 in \	101
3 Remove the display assembly (see \	101
4 Remove the hinge cover (see \	101
5 Remove the VGA connector board (see \	101
6 Note the AC-adapter connector cable routing and remove the cable from the routing guides.	101
7 Remove the screw that secures the AC-adapter connector to the computer base.	101
8 Lift the AC-adapter connector off the computer base.	101
Replacing the AC-Adapter Connector	102
1 Follow the instructions in \	102
2 Place the AC-adapter connector on the computer base.	102
3 Replace the screw that secures the AC-adapter connector to the computer base.	102
4 Route the AC-adapter connector cable through the routing guides.	102
5 Replace the VGA connector board (see \	102
6 Replace the hinge cover (see \	102
7 Replace the display assembly (see \	102
8 Follow the instructions from step 7 to step 20 in \	102
25	105
Flashing the BIOS	105
1 Turn on the computer.	105
2 Go to support.dell.com/support/downloads.	105
3 Locate the BIOS update file for your computer:	105
a Click Enter a Tag.	105
b Enter your computer’s Service Tag in the Enter a service tag: field, click Go, and proceed to step 4.	105
a Click Select Model.	105
b Select the type of product in the Select Your Product Family list.	105
c Select the product brand in the Select Your Product Line list.	105
d Select the product model number in the Select Your Product Model list.	105
e Click Confirm.	105
4 A list of results appear on the screen. Click BIOS.	105
5 Click Download Now to download the latest BIOS file. The File Download window appears.	105
6 Click Save to save the file on your desktop. The file downloads to your desktop.	105
7 Click Close if the Download Complete window appears. The file icon appears on your desktop and is titled the same as the downloaded BIOS update file.	105

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Dell™ Inspiron™

4110

Service Manual

Regulatory model: P20G

Regulatory type: P20G00