Product Description

1.4 Design Overview

This section presents a design overview of key parts and features of the computer. Refer to Chapter 3, “Illustrated Parts Catalog” and Chapter 5, “Removal and Replacement Procedures.”

The system board provides the following device connections:

■Memory expansion board

■Hard drive

■Display

■Keyboard/TouchPad

■Audio

■Intel Pentium III or Intel Celeron Processors

■Fan

■PC Card

■Modem or modem/NIC

■Microphone

The computer uses an electrical 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 applications. Exhaust air is displaced through the ventilation grill located on the right side of the computer.

ÄCAUTION: To properly ventilate the computer, allow at least a 3-inch (7.6 cm) clearance on the left and right sides of the computer.

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Maintenance and Service Guide