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1–20 Maintenance and Service Guide
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.
Ä
CAUTION: To properly ventilate the computer, allow at least a 3-inch
(7.6 cm) clearance on the left and right sides of the computer.
238850-003.book Page 20 Friday, December 21, 2001 2:53 PM