Dell Inspiron 13z (N311z, Mid 2011) - Manual (Page 63)

Processor Heat Sink 63
14
Heat-Sink Assembly
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 dell.com/regulatory_compliance.
WARNING: If you remove the heat-sink assembly from the computer when the
heat sink is hot, do not touch the metal housing of the heat-sink assembly.
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 13) before working inside the computer.
Removing the Heat-Sink Assembly
1 Follow the instructions in "Before You Begin" on page 9.
2 Follow the instructions from step 3 to step 15 in "Removing the System
Board" on page 59.
3 Loosen the three captive screws that secure the heat-sink assembly to the
system board in the sequential order indicated on the processor heat sink.
4 Remove the heat-sink cable from the connector on the system board.