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  1. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery: Schritt 1, Bild 1 von 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery: Schritt 1, Bild 2 von 2
    • Turn off power to the laptop.

    • Unplug the charging cable from the laptop.

    • Failure to unplug the charging cable could result in damaging the computer or seriously injuring yourself.

    • Wear the anti-static wrist strap or work in an uncarpeted area to prevent static shocks. Shocks may damage the components.

  2. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 2, Bild 1 von 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 2, Bild 2 von 2
    • First carefully turn the laptop over so you can access the battery.

    • Switch each of the battery latches to the "unlocked" position.

    • Pull battery upwards by the tab to remove from the laptop.

  3. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: Schritt 3, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: Schritt 3, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: Schritt 3, Bild 3 von 3
    • Remove the two 5.5mm screws that secure the base cover to the computer's base.

    • Using the plastic opening tool, carefully pry open the base cover starting from the center.

    • Lift the base cover upwards to remove and set it aside.

  4. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: Schritt 4, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: Schritt 4, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: Schritt 4, Bild 3 von 3
    • Remove the 5.5mm screw that secures the optical-drive assembly to the computer base

    • Using your fingertips, slide the optical-drive assembly out of the optical drive bay.

  5. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 5, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 5, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 5, Bild 3 von 3
    • This step is only needed if replacing the optical drive.

    • Remove the 2.5mm screw that secures the optical-drive bracket to the optical drive assembly.

    • Remove the optical-drive bracket from the optical-drive assembly.

    • Carefully pull the optical-drive bezel and remove it from the optical drive.

  6. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: Schritt 6, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: Schritt 6, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: Schritt 6, Bild 3 von 3
    • Remove the 2.5mm screw that secures the hard-drive assembly to the computer base.

    • Using the pull tab, slide the hard-drive assembly to disconnect it from the system board.

    • Lift the hard-drive assembly off the computer base

  7. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: Schritt 7, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: Schritt 7, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: Schritt 7, Bild 3 von 3
    • Disconnect the antenna cables from the wireless card.

    • Push the securing tab to release the wireless card.

    • Slide the wireless card out of the wireless-card slot.

  8. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: Schritt 8, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: Schritt 8, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: Schritt 8, Bild 3 von 3
    • Turn the computer over and open the display as far as possible

    • Using a plastic opening tool, release the tabs that secure the keyboard to the palm-rest assembly.

    • Before turning over the keyboard, be careful not to pull the keyboard too far away as it could damage the connected ribbon cables.

  9. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 9, Bild 1 von 1
    • Carefully turn the keyboard over and place it on the palm rest assembly.

    • Lift the latches and disconnect the keyboard cable and keyboard back-light cable from the system board.

    • Lift the keyboard along with the cables, off the palm-rest assembly and set it aside.

  10. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Palm Rest: Schritt 10, Bild 1 von 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Palm Rest: Schritt 10, Bild 2 von 2
    • Remove the (5) 5.5mm screws that secure the palm rest to the system board.

    • Close the display and turn the computer over.

    • Remove the (10) 5.5mm screws that secure the palm rest to the computer base.

  11. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 11, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 11, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 11, Bild 3 von 3
    • Turn the computer over and open the display as far as possible.

    • Lift the connector latches and disconnect the power-button board cable and the touch-pad cable from the system board.

    • Using a plastic scribe, gently lift and release the tabs on the palm rest around the computer base including the backside.

    • Lift the palm rest away from the display assembly.

  12. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: Schritt 12, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: Schritt 12, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: Schritt 12, Bild 3 von 3
    • Remove the 2.5mm screw that secures the optical-drive connector board to the computer base.

    • Move wireless card wires covering the board away from the board.

    • Slide the optical-drive connector board away from the computer base.

    • Lift the optical-drive connector board away from the computer base.

  13. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery-Connector Board: Schritt 13, Bild 1 von 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery-Connector Board: Schritt 13, Bild 2 von 2
    • Remove the 5.5mm screws that secure the battery-connector board to the computer base.

    • Carefully lift the battery-connector board to disconnect it from the system board.

  14. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, System Board: Schritt 14, Bild 1 von 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, System Board: Schritt 14, Bild 2 von 2
    • Close the display and turn the computer over.

    • Remove the antenna cables from the routing guides on the computer base.

    • Slide the antenna cables through the slot on the computer base.

  15. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 15, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 15, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 15, Bild 3 von 3
    • Turn the computer over and open the display as far as possible.

    • Peel off the tape that secures the display cable to the system-board assembly.

    • Lift the connector latch and disconnect the display cable from the system board.

    • Lift the connector latch and disconnect the I/O board cable from the system board.

  16. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 16, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 16, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: Schritt 16, Bild 3 von 3
    • Disconnect the speaker cable from the system board.

    • Disconnect the power-adapter port cable from the system board.

    • Remove the 5.5mm screws that secure the system-board assembly to the computer base.

    • Lift the system-board assembly off the computer base.

  17. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: Schritt 17, Bild 1 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: Schritt 17, Bild 2 von 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: Schritt 17, Bild 3 von 3
    • Turn the system-board assembly over and place it on a flat and clean surface.

    • In sequential order (indicated on the heat sink), loosen the (3) captive 5.5mm screws that secure the heat-sink assembly to the system board.

    • Disconnect the fan cable from the system board.

    • Lift the heat-sink assembly off the system board.

Abschluss

To reassemble your device, follow these instructions in reverse order.

Christopher Tran

Mitglied seit: 13.02.2018

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Washington State, Team S1-G2, Lobnitz Spring 2018 Mitglied von Washington State, Team S1-G2, Lobnitz Spring 2018

WSU-LOBNITZ-S18S1G2

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