Dell Inspiron Zino (300, Late 2009) - Manual (Page 14)

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Graphics-Card Heat Sink (Inspiron 400 Only)
Dell™ Inspiron™ 300/400 Service Manual
Removing the Graphics-Card Heat Sink
Replacing the Graphics-Card Heat Sink
Removing the Graphics-Card Heat Sink
1. Follow the procedures in Before You Begin .
2. Remove the bottom cover (see Removing the Bottom Cover ).
3. In sequential order (indicated on the graphics-card heat sink), loosen the four captive screws in descending order that secure the graphics-card heat
sink to the system board.
4. Lift the graphics-card heat sink away from the computer.
Replacing the Graphics-Card Heat Sink
1. Follow the procedures in Before You Begin .
2. Align the four captive screws on the graphics-card heat sink with the screw holes on the system board and tighten the screws in ascending order.
3. Replace the bottom cover (see Replacing the Bottom Cover ).
4. Connect your computer and all attached devices to electrical outlets, and turn them on.
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: The heat sink may be very hot during normal operation. Be sure that it has had sufficient time to cool before you touch it.
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: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps
incorrectly could damage your system board. For technical service information, see the Setup Guide.
CAUTION: To ensure maximum cooling for the graphics processor, do not touch the heat transfer areas on the graphics-card heat sink. The oils in
your skin can reduce the heat transfer capability of the thermal grease.
1 captive screws (4) 2 graphics-card heat sink
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.