Dell P28F001 manual Replacing the Heat-Sink

Page 57

Replacing the Heat-Sink

WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in "Before You Begin" on page 7. After working inside your computer, follow the instructions in "After Working Inside Your Computer" on page 9. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance.

Procedure

1Clean the thermal grease from the bottom of the heat-sink and reapply it.

2Align the screw holes on the heat-sink with the screw holes on the system board.

3In sequential order (indicated on the heat-sink), replace the screws that secure the heat-sink to the system board

Postrequisites

1Replace the system board. See "Replacing the System Board" on page 49.

2Replace the wireless mini-card. See "Replacing the Wireless Mini-Card" on page 39.

3Replace the palm-rest. See "Replacing the Palm-Rest" on page 35.

4Replace the keyboard. See "Replacing the Keyboard" on page 29.

5Replace the optical-drive assembly. See "Replacing the Optical-Drive Assembly" on page 21.

6Replace the hard-drive assembly. See "Replacing the Hard-Drive Assembly" on page 25.

7Follow the instructions from step 3 and step 4 in "Replacing the Memory Module(s)" on page 17.

8Replace the battery. See "Replacing the Battery" on page 13.

9Follow the instructions in "After Working Inside Your Computer" on page 9.

Replacing the Heat-Sink

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Contents Dell Inspiron 3521/5521 2012 Contents Removing the Wireless Mini-Card Removing the Coin-Cell Battery Removing the Display Bezel Turn Off Your Computer and Connected Devices Before You BeginRecommended Tools After Working Inside Your Computer After Working Inside Your Computer Procedure Removing the BatteryRemoving the Battery Postrequisites Replacing the BatteryReplacing the Battery Removing the Memory Modules Securing clips Memory-module connector Memory module Replacing the Memory Modules Replacing the Memory Modules Removing the Optical-Drive Assembly Removing the Optical-Drive Assembly Replacing the Optical-Drive Assembly Replacing the Optical-Drive Assembly Removing the Hard-Drive Assembly Hard-drive assembly Pull-tab Replacing the Hard-Drive Assembly Replacing the Hard-Drive Assembly Removing the Keyboard Connector latch Replacing the Keyboard Replacing the Keyboard Removing the Palm-Rest Touchpad cable Power-button cable Connector latches Screws Palm-rest Removing the Palm-Rest Replacing the Palm-Rest Replacing the Palm-Rest Removing the Wireless Mini-Card Wireless mini-card Replacing the Wireless Mini-Card Postrequisites Removing the I/O Board Board Board cable Screw Replacing the I/O Board Replacing the I/O Board Removing the System Board Procedure System board Screw Removing the System Board Replacing the System Board Entering the Service Tag in system setupReplacing the System Board Removing the Coin-Cell Battery Plastic scribe Coin-cell battery Replacing the Coin-Cell Battery Replacing the Coin-Cell Battery Removing the Heat-Sink Screw Fan Replacing the Heat-Sink Replacing the Heat-Sink Removing the Fan Fan cable Replacing the Fan Replacing the Fan Removing the Speakers Tape LED silicon tubes Speaker cable routing Speakers Removing the Speakers Replacing the Speakers Replacing the Speakers Removing the Display Assembly Display cable Wireless mini-card cables Display assembly Removing the Display Assembly Replacing the Display Assembly Replacing the Display Assembly Removing the Display Bezel Hinge covers Replacing the Display Bezel Replacing the Display Bezel Removing the Display Hinges Screws Display hinges Replacing the Display Hinges Replacing the Display Hinges Removing the Display Panel Display back-cover Display cable Tape Removing the Display Panel Replacing the Display Panel Replacing the Display Panel Removing the Camera Module Screw Camera module Tape Camera cable Replacing the Camera Module Replacing the Camera Module Flashing the Bios Flashing the Bios