Dell Vostro 3881 Service Manual page 49

Steps
1. Disconnect the fan cable from the connector on the system board.
2. In a reverse sequential order (4>3>2>1) loosen the four captive screws that secure the fan and heat-sink assembly to the
system board.
3. Lift the fan and heat-sink assembly off the system board.
Installing the fan and heat-sink assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
NOTE: If either the processor or the fan and heat-sink assembly is replaced, use the thermal grease provided in the kit to
ensure that thermal conductivity is maintained.
The following image indicates the location of the fan and heat-sink assembly, and provides a visual representation of the
installation procedure.
Disassembly and reassembly 49