1–22 Maintenance and Service Guide
Product Description
1. 5 D e s i g n  ove r v i ew
This section presents a design overview of key parts and features 
of the computer. Refer to Chapter 3, “Illustrated Parts Catalog,” 
to identify replacement parts, and Chapter 5, “Removal and 
Replacement Procedures,” for disassembly steps.
The system board provides the following device connections:
■ AMD Mobile Turion and Mobile AMD Sempron processors
■ Audio
■ Display
■ ExpressCard
■ Fan
■ Hard drive
■ Intel Core Duo processors
■ Keyboard and TouchPad
■ Memory module
■ Mini Card module
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CAUTION: To properly ventilate the computer, allow at least a 7.6-cm 
(3-inch) clearance on the left and right sides of the computer.
The computer uses an electric fan for ventilation. The fan is 
controlled by a temperature sensor and is designed to turn on 
automatically when high temperature conditions exist. These 
conditions are affected by high external temperatures, system 
power consumption, power management/battery conservation 
configurations, battery fast charging, and software. Exhaust air is 
displaced through the ventilation grill located on the left side of 
the computer.