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Dell Inspiron 14-5457 Owner's Manual
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Dell Inspiron 14-5457 Owner's Manual

Dell Inspiron 14-5457 Owner's Manual

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Inspiron 14
5000 Series
Owner's Manual
Computer Model: Inspiron 14–5457
Regulatory Model: P49G
Regulatory Type: P49G003

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Summary of Contents for Dell Inspiron 14-5457

  • Page 1 Inspiron 14 5000 Series Owner's Manual Computer Model: Inspiron 14–5457 Regulatory Model: P49G Regulatory Type: P49G003...
  • Page 2 WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2015 Dell Inc. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and the Dell logo are trademarks ™...

  • Page 3: Table Of Contents

    Contents Before working inside your computer........9 ....................9 Before you begin ....................9 Safety instructions ..................10 Recommended tools After working inside your computer........12 Removing the base cover............13 ......................13 Procedure Replacing the base cover............15 ......................15 Procedure Removing the battery............... 16 .....................
  • Page 4 Removing the wireless card............ 22 .....................22 Prerequisites ......................22 Procedure Replacing the wireless card.............24 ......................24 Procedure ....................25 Post-requisites Removing the memory modules..........26 .....................26 Prerequisites ......................26 Procedure Replacing the memory modules..........28 ......................28 Procedure ....................29 Post-requisites Removing the fan..............
  • Page 5 Removing the base frame............41 ..................... 41 Prerequisites ......................42 Procedure Replacing the base frame............45 ......................45 Procedure ....................45 Post-requisites Removing the heat sink............46 ....................46 Prerequisites ......................46 Procedure Replacing the heat sink............48 ......................48 Procedure ....................48 Post-requisites Removing the coin-cell battery..........49 ....................
  • Page 6 Removing the I/O board............55 .....................55 Prerequisites ......................55 Procedure Replacing the I/O board............57 ......................57 Procedure ....................57 Post-requisites Removing the status-light board........... 58 .....................58 Prerequisites ......................58 Procedure Replacing the status-light board..........62 ......................62 Procedure ....................62 Post-requisites Removing the system board............63 .....................63 Prerequisites ......................
  • Page 7 Removing the hinge covers............. 75 .....................75 Prerequisites ......................75 Procedure Replacing the hinge covers............. 77 ......................77 Procedure ....................77 Post-requisites Removing the antenna board..........78 .....................78 Prerequisites ......................78 Procedure Replacing the antenna board..........80 ......................80 Procedure ....................80 Post-requisites Removing the display bezel.............81 .....................81 Prerequisites ......................
  • Page 8 Removing the display hinges..........89 ....................89 Prerequisites ......................89 Procedure Replacing the display hinges...........91 ......................91 Procedure ....................91 Post-requisites Removing the camera...............92 .....................92 Prerequisites ......................92 Procedure Replacing the camera...............94 ......................94 Procedure ....................94 Post-requisites Removing the power-adapter port........95 .....................95 Prerequisites ......................

  • Page 9: Before Working Inside Your Computer

    Before working inside your computer CAUTION: To avoid damaging the components and cards, handle them by their edges and avoid touching pins and contacts. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before you begin Save and close all open files and exit all open applications.

  • Page 10: Recommended Tools

    CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that shipped with the product or at www.dell.com/regulatory_compliance.
  • Page 11 • Plastic scribe...

  • Page 12: After Working Inside Your Computer

    After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. Replace all screws and ensure that no stray screws remain inside your computer. Connect any external devices, peripherals, and cables you removed before working on your computer.

  • Page 13: Removing The Base Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Close the display and turn the computer over. Remove the screws that secure the base cover to the base frame.
  • Page 14 Slide and lift the base cover off the base frame. plastic scribe screws (2) base cover tabs base frame...

  • Page 15: Replacing The Base Cover

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the tabs on the base cover into the slots on the base frame. Press down on the base cover to snap it in place.

  • Page 16: Removing The Battery

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Procedure Remove the screws that secure the battery to the base frame.

  • Page 17: Replacing The Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw holes on the battery with the screw holes on the base frame and press down on the battery to connect it to the battery connector.

  • Page 18: Removing The Hard Drive

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. CAUTION: To avoid data loss, do not remove the hard drive while the computer is in sleep or on state.
  • Page 19 Gently lift the hard-drive assembly out of the base frame and disconnect the hard-drive cable from the hard drive. screws (3) hard drive hard-drive cable Remove the screws that secure the hard-drive bracket to the hard drive.
  • Page 20 Lift the hard-drive bracket off the hard drive. screws (4) hard-drive bracket hard drive...

  • Page 21: Replacing The Hard Drive

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive. Procedure Place the hard-drive bracket on the hard drive.

  • Page 22: Removing The Wireless Card

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 23 Lift and slide the wireless card out of the wireless-card slot. screw wireless-card bracket antenna cables (2) wireless card wireless-card slot...

  • Page 24: Replacing The Wireless Card

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless card, do not place any cables under it.

  • Page 25: Post-Requisites

    Replace the screw that secures the wireless card and the wireless-card bracket to the system board. wireless-card slot wireless card notch antenna cables (2) screw wireless-card bracket Post-requisites Replace the battery. Replace the base cover.

  • Page 26: Removing The Memory Modules

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 27 Slide and remove the memory module from the memory-module slot. securing-clips (2) memory-module slot memory module...

  • Page 28: Replacing The Memory Modules

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the notch on the memory module with the tab on the memory- module slot.

  • Page 29: Post-Requisites

    Slide the memory module firmly into the slot at an angle, and press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it. memory-module slot memory module Post-requisites Replace the battery.

  • Page 30: Removing The Fan

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 31 Disconnect the I/O-board cable from the system board. latch pull tab I/O-board cable Disconnect the fan cable from the system board. Note the fan-cable routing and remove the cable from the routing guides. Remove the screws that secure the fan to the base frame.
  • Page 32 Lift the fan off the palm rest. fan cable screws (2)

  • Page 33: Replacing The Fan

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Place the fan on the palm rest and align the screw holes on the fan with the screw holes on the base frame.

  • Page 34: Removing The Keyboard

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 35 Turn the keyboard over and place it on the palm rest. plastic scribe keyboard tabs...
  • Page 36 Lift the latches and, using the pull tabs, disconnect the keyboard cable and keyboard-backlight cable from the system board. NOTE: The keyboard-backlight cable is present only if the laptop shipped with a backlit-keyboard. keyboard cable keyboard-backlight cable keyboard...

  • Page 37: Replacing The Keyboard

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure NOTE: If you are installing a new keyboard, fold the cables the same way they are folded on the old keyboard. For more information, see “Folding...
  • Page 38 NOTE: Keyboard-backlight cable is present only on a backlit-keyboard. Place the keyboard on a flat and clean surface. keyboard cable keyboard-backlight cable keyboard...
  • Page 39 Lift the keyboard cable and gently fold the keyboard-backlight cable at the fold line. keyboard cable keyboard-backlight cable fold line...
  • Page 40 Using the alignment line, gently fold the keyboard cable. keyboard cable keyboard-backlight cable alignment line keyboard keyboard cable keyboard-backlight cable...

  • Page 41: Removing The Base Frame

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.

  • Page 42: Procedure

    Procedure Remove the screws that secure the base frame to the palm rest. screws (6) palm rest Close the display and turn the computer over.
  • Page 43 Remove the screws that secure the base frame to the palm rest. screws (9) base frame Using a plastic scribe, pry up the base frame. Lift the base frame slightly from the top edge and slide it upward to release it from the tabs of the palm rest.
  • Page 44 Lift the base frame off the palm rest and slide the display cable and I/O- board cable through the base frame. display cable plastic scribe I/O-board cable base frame tabs...

  • Page 45: Replacing The Base Frame

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Route the display cable and I/O-board cable through the slots on the base frame.

  • Page 46: Removing The Heat Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. WARNING: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it.
  • Page 47 Lift the heat sink off the system board. screws (6) heat sink...

  • Page 48: Replacing The Heat Sink

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor. NOTE: The original thermal grease can be reused if the original system board and heat sink are reinstalled together.

  • Page 49: Removing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is recommended that you note the BIOS setup program’s settings before removing the coin-cell battery.
  • Page 50 Peel off the coin-cell battery from the system board. coin-cell battery coin-cell battery cable...

  • Page 51: Replacing The Coin-Cell Battery

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Adhere the coin-cell battery to the system board. Connect the coin-cell battery cable to the system board.

  • Page 52: Removing The Speakers

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 53 Release the speakers from the alignment posts and lift the speakers, along with the speaker cable, off the palm rest. speaker cable speakers (2) alignment posts (4)

  • Page 54: Replacing The Speakers

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure NOTE: The rubber grommets may get pushed out while replacing the speakers. Ensure that the rubber grommets are in their position after placing the speakers on the computer base.

  • Page 55: Removing The I/O Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 56 Lift the I/O board off the palm rest. screw I/O board I/O-board cable...

  • Page 57: Replacing The I/O Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw hole on the I/O board with the screw hole on the palm rest.

  • Page 58: Removing The Status-Light Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 59 Slide the status-light board cable out through the slot on the palm rest. latch status-light board cable Close the display and turn the computer over.
  • Page 60 Lift the left speaker and move it away from the status-light board. left speaker Remove the screw that secures the status-light board to the palm rest.
  • Page 61 Lift the status-light board and peel off the status-light board cable from the palm rest. status-light board cable screw status-light board...

  • Page 62: Replacing The Status-Light Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw hole on the status-light board with the screw hole on the palm rest.

  • Page 63: Removing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 64 Lift the latches and disconnect the status-light board cable and touchpad cable from the system board. status-light board cable touchpad cable Close the display panel and turn the computer over. Remove the screws that secure the system board to the palm rest. Disconnect the speaker cable and hard-drive cable from the system board.
  • Page 65 Lift the hard-drive cable away from the computer base. system board screws (2) hard-drive cable speaker cable Carefully lift the system board from the inner edge and release the ports from the slots on the palm rest.
  • Page 66 Turn the system board over. ports system board power-adapter port cable...
  • Page 67 Disconnect the power-adapter port cable from the system board. system board power-adapter port cable...

  • Page 68: Replacing The System Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
  • Page 69 Replace the fan. Replace the hard drive. Replace the battery. Replace the base cover.

  • Page 70: Removing The Display Assembly

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.

  • Page 71: Procedure

    Procedure Peel off the tape that secures the antenna cables. antenna cables (2) tape Open the display to an angle of 90 degrees. Place the computer on the edge of the table so that the palm rest is on the table and the display assembly extends past the table edge with the display hinges facing up.
  • Page 72 Lift the display assembly off the palm rest. palm-rest assembly screws (4) display hinges (2) display assembly...

  • Page 73: Replacing The Display Assembly

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Place the palm rest at the edge of the table with the speakers facing away from the edge.

  • Page 74: Post-Requisites

    Route the antenna cables and adhere the tape to secure the antenna cables to the system board. tape antenna cables (2) Post-requisites Replace the base frame. Replace the keyboard. Replace the fan. Replace the hard drive. Replace the battery. Replace the base cover.

  • Page 75: Removing The Hinge Covers

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 76 hinge cover...

  • Page 77: Replacing The Hinge Covers

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the hinge cover with the hinges on the display assembly and snap the hinge cover into place.

  • Page 78: Removing The Antenna Board

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 79 Lift the antenna board, along with the antenna cables, off the display assembly. screws (2) antenna board...

  • Page 80: Replacing The Antenna Board

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw holes on the antenna board with the screw holes on the display assembly.

  • Page 81: Removing The Display Bezel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.

  • Page 82: Procedure

    Procedure Remove the screws that secure the display bezel to the display back- cover. screws (2) Using your fingertips, carefully pry up the outside edge of the display bezel.
  • Page 83 Lift the display bezel off the display back-cover. display back-cover display bezel...

  • Page 84: Replacing The Display Bezel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the display bezel with the display back-cover, and gently snap the display bezel into place.

  • Page 85: Removing The Display Panel

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 86 Gently lift the display panel and turn it over. screws (4) display back-cover Peel the tape adhered over the display cable.
  • Page 87 Disconnect the display cable from the display panel. display panel tape display cable...

  • Page 88: Replacing The Display Panel

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Connect the display cable to the display panel. Adhere the tape that secures the display cable.

  • Page 89: Removing The Display Hinges

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 90 Lift the display hinges off the display back-cover. screws (6) display hinges (2) display back-cover...

  • Page 91: Replacing The Display Hinges

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Align the screw holes on the display hinges with the screw holes on the display back-cover.

  • Page 92: Removing The Camera

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 93 Disconnect the camera cable from the camera. camera camera cable...

  • Page 94: Replacing The Camera

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Connect the camera cable to the camera. Adhere the camera to the display back-cover.

  • Page 95: Removing The Power-Adapter Port

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 96 Lift the latches and disconnect the status-light board cable and touchpad cable from the system board. status-light board cable touchpad cable Turn the computer over. Disconnect the speaker cable from the system board.
  • Page 97 Remove the screws that secure the system board to the palm rest. speaker cable screws (2) system board Carefully lift the system board from the inner edge and release the ports from the slots on the palm rest. Turn the system board over. system board Disconnect the power-adapter port cable from the system board.
  • Page 98 Note the power-adapter port cable routing and lift the power-adapter port, along with its cable, off the palm rest. power-adapter port power-adapter port cable...

  • Page 99: Replacing The Power-Adapter Port

    After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Connect the power-adapter port cable to the system board. Turn the system board over.
  • Page 100 Replace the base cover.

  • Page 101: Removing The Palm Rest

    Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Prerequisites Remove the base cover. Remove the battery.
  • Page 102 Lift the system board along with the power-adapter port and release the ports from the slots on the palm rest. power-adapter port power-adapter port cable screws (2) system board palm rest...

  • Page 103: Replacing The Palm Rest

    After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance. Procedure Slide the ports on the system board into the slots on the palm rest and place the system board on the palm rest.

  • Page 104: Flashing The Bios

    You may need to flash (update) the BIOS when an update is available or when you replace the system board. To flash the BIOS: Turn on the computer. Go to www.dell.com/support. Click Product Support, enter the Service Tag of your computer and click Submit.

This manual is also suitable for:

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