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Dell Inspiron 17-5749 Heat-sink Assembly Replacement

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  1. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery: step 1, image 1 of 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery: step 1, image 2 of 2
    Tool used on this step:
    Anti-Static Wrist Strap
    $7.95
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    • 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.

    Edit

  2. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 2, image 1 of 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 2, image 2 of 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.

    Edit

  3. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: step 3, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: step 3, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Back Cover: step 3, image 3 of 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.

    Edit

  4. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: step 4, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: step 4, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical Drive: step 4, image 3 of 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.

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  5. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 5, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 5, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 5, image 3 of 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.

    Edit

  6. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: step 6, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: step 6, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Hard Drive: step 6, image 3 of 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

    Edit

  8. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: step 7, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: step 7, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Wireless Card: step 7, image 3 of 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.

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  9. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: step 8, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: step 8, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Keyboard: step 8, image 3 of 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.

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  10. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 9, image 1 of 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.

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  11. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Palm Rest: step 10, image 1 of 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Palm Rest: step 10, image 2 of 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.

    Edit

  12. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 11, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 11, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 11, image 3 of 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.

    Edit

  13. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: step 12, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: step 12, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Optical-Drive Connector Board: step 12, image 3 of 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.

    Edit

  14. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery-Connector Board: step 13, image 1 of 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Battery-Connector Board: step 13, image 2 of 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.

    Edit

  15. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, System Board: step 14, image 1 of 2 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, System Board: step 14, image 2 of 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.

    Edit

  16. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 15, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 15, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 15, image 3 of 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.

    Edit

  17. Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 16, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 16, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement: step 16, image 3 of 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.

    Edit

  18. Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: step 17, image 1 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: step 17, image 2 of 3 Dell Inspiron 17-5749 Heat-sink Assembly Replacement, Heat-sink Assembly: step 17, image 3 of 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.

    Edit
Conclusion

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

Author

with 1 other contributor

Christopher Tran

Member since: 02/13/18

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12 Guides authored

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Team

Washington State, Team S1-G2, Lobnitz Spring 2018 Member of Washington State, Team S1-G2, Lobnitz Spring 2018

WSU-LOBNITZ-S18S1G2

6 Members

12 Guides authored

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