Dell Inspiron 17-5755 Motherboard Replacement

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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.

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Adım 1 Battery

Dell Inspiron 17-5755 Motherboard Replacement, Battery: adım 1, 1 resimden 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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Adım 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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Adım 3

Safely remove the battery from the laptop.

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Adım 4 Keyboard

Dell Inspiron 17-5755 Motherboard Replacement, Keyboard: adım 4, 2 resimden 1.

Dell Inspiron 17-5755 Motherboard Replacement, Keyboard: adım 4, 2 resimden 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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Adım 5

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

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Adım 6

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

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Adım 7

Dell Inspiron 17-5755 Motherboard Replacement: adım 7, 3 resimden 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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Adım 8

Dell Inspiron 17-5755 Motherboard Replacement: adım 8, 3 resimden 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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Adım 9

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

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Adım 10 Motherboard

Dell Inspiron 17-5755 Motherboard Replacement, Motherboard: adım 10, 1 resimden 1.

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

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Adım 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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Adım 12

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

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Adım 13

Dell Inspiron 17-5755 Motherboard Replacement: adım 13, 3 resimden 3.

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

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Adım 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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Adım 15

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

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Adım 16

Dell Inspiron 17-5755 Motherboard Replacement: adım 16, 3 resimden 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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Adım 17

Dell Inspiron 17-5755 Motherboard Replacement: adım 17, 3 resimden 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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Adım 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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Adım 19

Dell Inspiron 17-5755 Motherboard Replacement: adım 19, 3 resimden 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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Adım 20

Dell Inspiron 17-5755 Motherboard Replacement: adım 20, 3 resimden 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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Adım 21

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

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Adım 22

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

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Adım 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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Adım 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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Adım 25

Dell Inspiron 17-5755 Motherboard Replacement: adım 25, 3 resimden 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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Adım 26

Dell Inspiron 17-5755 Motherboard Replacement: adım 26, 3 resimden 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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Adım 27

Dell Inspiron 17-5755 Motherboard Replacement: adım 27, 3 resimden 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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Adım 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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Adım 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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