Dell Inspiron 17-5755 Motherboard Replacement

はじめに

This guide will allow you to replace a defective motherboard for the Dell Inspiron 17-5755. Please ensure that the battery is removed before performing this replacement.

必要な工具と部品

手順1 Battery

Dell Inspiron 17-5755 Motherboard Replacement, Battery: 手順 1、 1の画像 1

Make sure the computer has been shut down, and isn't plugged into an outlet before attempting to remove the battery.

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手順2

Find the battery release latch on the bottom side of the computer.
Slide the latch to the left until you hear a "click". This indicates that the battery has been released.

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手順3

Safely remove the battery from the laptop.

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手順4 Keyboard

Dell Inspiron 17-5755 Motherboard Replacement, Keyboard: 手順 4、 2の画像 1

Dell Inspiron 17-5755 Motherboard Replacement, Keyboard: 手順 4、 2の画像 2

Open the display of the laptop as far as possible, and locate the tabs which secure the keyboard to the laptop.

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手順5

Use a plastic opening tool to gently release the tabs that secure the keyboard to the laptop.

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手順6

Carefully lift the keyboard from the laptop, being mindful of any attachments that it may have.

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手順7

Dell Inspiron 17-5755 Motherboard Replacement: 手順 7、 3の画像 3

Lift the zero insertion force (ZIF) tab that secures the keyboard back light ribbon cable
Afterwards, carefully detach the backlight cable from the laptop.

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手順8

Dell Inspiron 17-5755 Motherboard Replacement: 手順 8、 3の画像 3

Gently release the ZIF tab that secures the keyboard ribbon cable to the laptop.
Afterwards, carefully slide the cable out of its slot.

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手順9

Now that the keyboard is detached from the laptop, you may safely remove it.

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手順10 Motherboard

Dell Inspiron 17-5755 Motherboard Replacement, Motherboard: 手順 10、 1の画像 1

Use a Phillips #0 screwdriver to unscrew the two 8mm screws which secure the base cover.

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手順11

Locate the tabs that hold the base cover to the laptop and use a plastic opening tool to gently release the base cover.

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手順12

Now with the base cover removed, you may lift it off of the laptop and continue.

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手順13

Dell Inspiron 17-5755 Motherboard Replacement: 手順 13、 3の画像 3

Disconnect the hard drive ribbon cable from the laptop by lifting the latch which secures it.

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手順14

Use a Phillips #0 screwdriver to remove the four 8mm screws which secure the hard drive assembly to the laptop.

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手順15

Carefully remove the hard drive and its assembly from the laptop.

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手順16

Dell Inspiron 17-5755 Motherboard Replacement: 手順 16、 3の画像 3

Remove the 3mm screw which secures the wireless card bracket.
After removing the screw, remove the wireless card bracket, along with the antenna cables secured to the wireless card.
Afterwards, you may slide and remove the wireless card from the motherboard.

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手順17

Dell Inspiron 17-5755 Motherboard Replacement: 手順 17、 3の画像 3

Gently spread apart the securing clips on each end of the memory-module slot until the memory module pops out.
Slide and remove the memory module afterwards.

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手順18

Use a plastic opening tool to gently pry the CMOS battery found at the bottom right of the laptop out of the socket.

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手順19

Dell Inspiron 17-5755 Motherboard Replacement: 手順 19、 3の画像 3

Use a Phillips #0 screwdriver to remove the 3mm screw which secures the optical-drive assembly to the computer base
Turn the computer over and using a plastic opening tool, push the optical-drive assembly out of the optical drive bay.
Afterwards, safely pull the optical-drive assembly out of the optical-drive bay.

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手順20

Dell Inspiron 17-5755 Motherboard Replacement: 手順 20、 3の画像 3

Turn the computer over
Lift the latch securing the optical drive ribbon cable, and disconnect it from the motherboard.
Afterwards, use a Phillips #0 screwdriver to remove the four 5mm screws.

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手順21

Turn over the laptop, and safely disconnect the speaker cable.

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手順22

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

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手順23

Use a Phillips #0 screwdriver to remove the 15 screws that secure the computer base to the palm rest assembly.
Afterwards, safely pry the computer base from the palm rest assembly using a plastic opening tool.
There are 3 different screws used: Three 2mm screws on the edge of the optical drive, two 3mm screws located where the battery was, and ten 8mm screws.

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手順24

Use a Phillips #0 screwdriver to remove the 5mm screw that secures the I/O board to the palm-rest assembly.

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手順25

Dell Inspiron 17-5755 Motherboard Replacement: 手順 25、 3の画像 3

Lift the I/O board and turn it over.
Afterwards, lift the ZIF latch and disconnect the I/O-board cable from the I/O board.

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手順26

Dell Inspiron 17-5755 Motherboard Replacement: 手順 26、 3の画像 3

Disconnect the fan cable from the motherboard.
Use a Phillips #0 screwdriver to remove the heat-sink screws in sequential order, as indicated by the numbers on the heat-sink assembly.
Afterwards lift the heat-sink assembly off the motherboard.

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手順27

Dell Inspiron 17-5755 Motherboard Replacement: 手順 27、 3の画像 3

Turn the computer over and open the display as far as possible.
Lift the latches for the power button board cable and disconnect it along with the touchpad cable from the motherboard.

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手順28

Close the display and turn the computer over.
Proceed to lift the latch which secures the ZIF display cable to the motherboard.
Disconnect the display cable from the motherboard.

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手順29

Use a Phillips# 0 screwdriver to remove the 3mm screw that secures the motherboard to the palm-rest assembly.
Afterwards, carefully peel the I/O board cable off the palm-rest assembly.

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