Dell XPS 14Z (L412z): Heat Sink and Fan

Heat Sink and Fan: Dell XPS 14Z (L412z)

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11

Heat Sink and Fan

WARNING: Before working inside your computer, read the safety information

that shipped with your computer. For additional safety best practices information,

see the Regulatory Compliance Homepage at

www.dell.com/regulatory_compliance.

WARNING: If you remove the heat sink from the computer when the heat sink is

hot,

do not touch

the metal housing of the heat sink.

CAUTION: Only a certified service technician should perform repairs on your

computer. Damage due to servicing that is not authorized by Dell is not covered by

your warranty.

CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist

grounding strap or by periodically touching an unpainted metal surface (such as a

connector on your computer).

CAUTION: To help prevent damage to the system board, remove the main battery

(see "Removing the Battery" on page 15) before working inside the computer.

Removing the Heat Sink and Fan

1

Follow the instructions in "Before You Begin" on page 7.

2

Remove the base cover (see "Removing the Base Cover" on page 11).

3

Remove the battery (see "Removing the Battery" on page 15).

4

Using your fingertips gently peel off the display cable tape from the

heat sink.

5

Disconnect the fan cable from the system-board connector.

6

In sequential order (indicated on the heat sink), remove the six screws that

secure the heat sink to the system board.

7

Lift the heat sink and fan away from the system board.

Heat Sink and Fan 41

1 fan cable 2 screws (6)

3 display cable tape 4 heat sink and fan

Replacing the Heat Sink and Fan

NOTE: The original thermal grease can be reused if the original system board and

heat sink are reinstalled together. If either the system board or the heat sink is

replaced, use the thermal pad provided in the kit to ensure that thermal conductivity

is achieved.

1

Follow the instructions in "Before You Begin" on page 7.

2

Clean the thermal grease from the bottom of the heat sink and reapply it.

3

Align the screw holes on the heat sink with the screw holes on the system

board.

4

In sequential order (indicated on the heat sink), replace the six screws that

secure the heat sink to the system board.

5

Connect the fan cable to the system-board connector.

6

Adhere the display cable tape to the heat sink.

42 Heat Sink and Fan

2

1

3

4

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7

Replace the battery (see "Replacing the Battery" on page 16).

8

Replace the base cover (see "Replacing the Base Cover" on page 12).

CAUTION: Before turning on the computer, replace all screws and ensure that no

stray screws remain inside the computer. Failure to do so may result in damage to

the computer.

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44 Heat Sink and Fan