Dell M4040/14-N4050 owner manual Entering the Service Tag in the Bios

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9Follow the instructions from step 3 to step 7 in "Replacing the Palm-Rest Assembly" on page 28.

10Replace the optical drive. See "Replacing the Optical Drive" on page 24.

11Replace the memory module(s). See "Replacing the Memory Module(s)" on page 20.

12Replace the keyboard. See "Replacing the Keyboard" on page 17.

13Replace the battery. See "Replacing the Battery" on page 14.

14Replace any removed cards or blanks in the 3-in-1 media card reader.

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.

15Turn on the computer.

NOTE: After you have replaced the system board, enter the computer Service Tag into the BIOS of the replacement system board.

16Enter the service tag. See "Entering the Service Tag in the BIOS" on page 76.

Entering the Service Tag in the BIOS

1Ensure that the AC adapter is plugged in and that the main battery is installed properly.

2Turn on the computer.

3Press <F2> during POST to enter the system setup program.

4Navigate to the security tab and enter the service tag in the Set Service Tag field.

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System Board

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Contents Regulatory model P22G Regulatory type P22G001 P22G002 Regulatory model P22G Contents Replacing the Optical Drive Palm-Rest Assembly Thermal Cooling Assembly Removing the Camera Module Replacing the Camera Module Contents Contents Recommended Tools Before You BeginTurning Off Your Computer Before Working Inside Your Computer Before You Begin Before You Begin Battery Removing the BatteryReplacing the Battery Keyboard Removing the KeyboardPlastic scribe Tabs Keyboard Replacing the Keyboard Keyboard Memory Modules Removing the Memory ModulesReplacing the Memory Modules Click Start → Control Panel→ System and Security→ System Memory Optical Drive Removing the Optical DriveReplacing the Optical Drive Palm-Rest Assembly Removing the Palm-Rest AssemblyPalm-Rest Assembly Power-button board cable Touch-pad cable Replacing the Palm-Rest Assembly Replace the battery. See Replacing the Battery on Palm-Rest Assembly Power Button Board Removing the Power Button BoardReplacing the Power Button Board Hard Drive Removing the Hard DriveHard-drive assembly Replacing the Hard Drive Hard Drive Wireless Mini-Card Removing the Mini-CardReplacing the Mini-Card Wireless Mini-Card Wireless Mini-Card Audio Board Removing the Audio BoardReplacing the Audio Board Coin-Cell Battery Removing the Coin-Cell BatteryBattery socket Coin-cell battery Coin-cell battery cable Replacing the Coin-Cell Battery Coin-Cell Battery USB Board Removing the USB BoardReplacing the USB Board Thermal Cooling Assembly Removing the Thermal Cooling AssemblyReplacing the Thermal Cooling Assembly Processor Module For Inspiron 14-N4050 Only Removing the Processor ModuleReplacing the Processor Module Processor Module For Inspiron 14-N4050 Only Processor Module For Inspiron 14-N4050 Only Hinge Cover Removing the Hinge CoverHinge Cover Replacing the Hinge Cover Hinge Cover Display Assembly DisplayDisplay cable Mini-Card Mini-Card antenna cables Replacing the Display Assembly Display Bezel Removing the Display BezelDisplay Panel Replacing the Display BezelDisplay cable Display cover Display panel Display-panel brackets Replacing the Display Panel Display Display Camera Module Removing the Camera ModuleReplacing the Camera Module Camera Module Camera Module System Board Removing the System BoardDisplay cable AC-adapter cable Speakers cable Replacing the System Board Entering the Service Tag in the Bios Flashing the Bios Click Enter a TagFlashing the Bios