Back to Contents PageProcessor Heat SinkDell™ Inspiron™ 1440 Service ManualRemoving the Processor Heat SinkReplacing the Processor Heat SinkRemoving the Processor Heat Sink1. Follow the procedures in Before You Begin.2. Follow the procedures from step 2 to step 16 in Removing the System Board.3. Disconnect the fan cable from the connector on the system board.4. In sequential order (indicated on the processor heat sink), loosen the five captive screws that secure the processor heat sink to the system board.5. Lift the processor heat sink off the computer.Replacing the Processor Heat Sink1. Align the five captive screws on the processor heat sink with the screw holes on the system board and tighten the screws in descending order.2. Connect the fan cable to the connector on the system board.3. Follow the procedures from step 4 to step 19 in Replacing the System Board.WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety bestpractices information, see the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.WARNING: If you remove the processor heat sink from the computer when the heat sink is hot, do not touch the metal housing of the processorheat sink.CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metalsurface (such as the back panel) on the computer.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 help prevent damage to the system board, remove the main battery (see Removing the Battery) before working inside thecomputer.1 processor heat sink 2 fan cable connector3 captive screws (5)NOTE: The original thermal pad can be reused if the original processor and heat sink are reinstalled together. If either the processor or heat sink isreplaced, use the thermal pad provided in the kit to ensure that thermal conductivity is achieved.NOTE: This procedure assumes that you have already removed the processor heat sink and are ready to replace it.