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HP Probook 6450b Fan Cleaning & Thermal Paste Replacement

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  1. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement, HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 1 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement, HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 1 中的图像 2,2
    • Shut down your laptop completely.

    • Do not simply power off your computer using the power button. This will put the laptop into sleep mode. Instead, shut down the laptop from the start menu.

    • Unplug the charger cord and all devices connected to the computer.

  2. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 2 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 2 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 2 中的图像 3,3
    • Flip the laptop over and locate the battery compartment release latch.

    • Slide the release latch to the left to release the battery.

  3. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 3 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 3 中的图像 2,2
    • Remove the battery.

  4. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 4 中的图像 1,1
    • Electrostatic shocks can damage the internal components of the computer.

    • Press and hold the power button for a minimum of 10 seconds to allow electric charge to dissipate from the motherboard and internal components.

    • Optional: You may also wear an anti-static bracelet during the repair as a safety precaution. This grounds you to the computer chassis and prevents accidental static discharge from your fingers.

  5. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 5 中的图像 1,1
    • Locate and loosen the 3 Phillips PM 2.5 x 11.0 screws on the bottom side of the computer.

  6. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 6 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 6 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 6 中的图像 3,3
    • Flip the laptop right side up and open the screen.

    • Locate the 4 keyboard tabs. Slide the tabs towards you.

  7. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 7 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 7 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 7 中的图像 3,3
    • Lift the keyboard by the upper edge, then flip it over so the ribbon cable is exposed.

    • Do not attempt to remove the keyboard until the ribbon cable has been disconnected.

  8. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 8 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 8 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 8 中的图像 3,3
    • Lift both ends of the plastic tab securing the ribbon cable to the system board with the help of a spudger.

    • If you don't have a spudger, any plastic item with a thin edge, like the plastic opening tool pictured here, will work just as well. Guitar picks are also a good alternative.

  9. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 9 中的图像 1,1
    • Remove the keyboard ribbon cable and set the keyboard aside.

  10. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 10 中的图像 1,1
    • Close the laptop and turn it upside down.

    • Remove the 3 PM 2.0 x 3.0 screws securing the switch cover.

  11. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 11 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 11 中的图像 2,2
    • Flip the laptop right side up, and open the display.

    • Locate the LED board ribbon cable. Lift both ends of the plastic tab securing the ribbon cable to the system board.

    • Slide out the LED board ribbon cable.

  12. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 12 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 12 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 12 中的图像 3,3
    • Remove the switch cover.

    • You may need to use the spudger or opening tool to pry open the switch cover. It is easiest to start from the top edge, closest to the screen.

  13. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 13 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 13 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 13 中的图像 3,3
    • Locate and loosen the 2 slotted Torx T8M 2.5 x 7.0 screws securing the fan to the motherboard.

    • Disconnect the fan cable from the board.

  14. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 14 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 14 中的图像 2,2
    • Lift out vent fan.

    • Clean the dust from the fan with a small brush and/or compressed air.

    • When using compressed air, avoid tilting the bottle greater than 40 degrees from vertical. Doing so will cause the part and your hand to rapidly cool.

  15. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 15 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 15 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 15 中的图像 3,3
    • Locate and loosen the 4 Phillips PM 2.5 x 9.0 screws securing the heat sink.

    • You may wish to disconnect the cable adjacent to the heat sink, to make removal easier.

  16. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 16 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 16 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 16 中的图像 3,3
    • The thermal paste may have stuck the heat sink to the motherboard. Gently jimmy the heat sink back and forth until it is loose.

    • Extract the heat sink.

  17. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 17 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 17 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 17 中的图像 3,3
    • Remove dust trapped in the heat sink vent with compressed air and/or a small brush.

  18. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 18 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 18 中的图像 2,2
    • Remove the old thermal paste from the heat sink and the CPU with a lint free wipe or cotton swab dipped in rubbing alcohol.

  19. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 19 中的图像 1,2 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 19 中的图像 2,2
    • Allow the rubbing alcohol to dry completely.

    • Squeeze a small quantity of thermal paste onto the component's surface. The gobs should be about the size of a grain of rice.

  20. HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 20 中的图像 1,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 20 中的图像 2,3 HP Probook 6450b Fan Cleaning & Thermal Paste Replacement: 步骤 20 中的图像 3,3
    • Reinsert the heat sink into the laptop. Tighten the screws to secure it into place.

结论

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

24等其他人完成本指南。

Carolyn Teng

于02/24/15注册

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创作了15篇指南

5条评论

I didn't think i would find a guide for my 6540b let alone the exact procedure I need. Thanks a million!

tech4eleven - 回复

Awesome tutorial! Cleaned mine pretty quick.

Dawn Eckel - 回复

Your instructions are very helpful. Thank you

Stanford Kaswera - 回复

I have cleaned it all and all went well but on start up I have a blank screen.

Any help?

Fred Paul - 回复

Fred Paul try re seating or replacing ram.Also check .LCD ribbon cable.

Michael - 回复

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