Dell Inspiron 17 7786 2 In 1 Heatsink Replacement Repair Guide

Difficulty

Moderate

Steps

10

Time Required

                          4 minutes            

Sections

3

• Base Cover
• 4 steps
• Fan
• 4 steps
• Heatsink
• 2 steps

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Introduction

If the device has a loud fan noise, is hot to the touch, and turns off or restarts after a few minutes of being on, a faulty heatsink may be the cause.

Similar to the fan, you can hear a loud, constantly running fan. This could signal a dust accumulation in the heatsink. Without the heatsink, the fan is working harder than normal to compensate for the faulty heatsink. You may need to take the computer apart to use compressed air to clean the heatsink out or a microfiber cloth.

The computer case may feel hot to the touch. If you have fan noise and ruled out malware or other types of software problems, then a faulty or clogged heatsink could be the cause. You can also download temperature utility applications on your device to check the temperature.

When the temperature reaches a critical level, the system will shut itself down, restart itself or will stop randomly. This is to prevent permanent damage. The system shutdown will also show an error message. This may be a sign of a faulty, clogged or dead heatsink.

Replacement is recommended.

What you need

Step 1

              Base Cover               

• Remove the eight M2 5mm screws that secure the base cover using a Phillips #0 screwdriver.

Remove the eight M2 5mm screws that secure the base cover using a Phillips #0 screwdriver.

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Step 2

• Loosen the three captive screws that secure the base closer to the hinges.
• Do not attempt to remove the three captive screws! You need only to loosen them. They’re supposed to stay on the base cover.

Loosen the three captive screws that secure the base closer to the hinges.

Do not attempt to remove the three captive screws! You need only to loosen them. They’re supposed to stay on the base cover.

Step 3

• Carefully pry the base cover using an iFixit opening tool in the crevice near the hinges. Guide the pick along the edges and slightly lift upwards as you go along.
• Do not start from the speaker end of the edges when opening, or you may cause further damage to your device!

Carefully pry the base cover using an iFixit opening tool in the crevice near the hinges. Guide the pick along the edges and slightly lift upwards as you go along.

Do not start from the speaker end of the edges when opening, or you may cause further damage to your device!

Step 4

• Carefully remove the base cover from the laptop.

Carefully remove the base cover from the laptop.

Step 5

              Fan               

• Gently remove the I/O cable.

Gently remove the I/O cable.

Step 6

• Remove the fan cable from the motherboard.

Remove the fan cable from the motherboard.

Step 7

• Remove two 3 mm screws that secure the fan using a Phillips #0 screwdriver.

Remove two 3 mm screws that secure the fan using a Phillips #0 screwdriver.

Step 8

• There is a little piece of tape/sticker on the fan that connects it to the heat sink. Gently remove this.
• Lift the fan off the palm rest assembly.

There is a little piece of tape/sticker on the fan that connects it to the heat sink. Gently remove this.

Lift the fan off the palm rest assembly.

Step 9

              Heatsink               

• Loosen seven 3 mm captive screws securing the heatsink to the motherboard using a Phillips #0 screwdriver.

Loosen seven 3 mm captive screws securing the heatsink to the motherboard using a Phillips #0 screwdriver.

Step 10

• Lift the heatsink off the motherboard.

Lift the heatsink off the motherboard.

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

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                    Delia Padilla                     

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