HP Nc4000 HP Compaq nc4010 Notebook PC - Maintenance and Service Guide - Page 27

Design Overview

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Product Description 1.6 Design Overview This section presents a design overview of key parts and features of the notebook. 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: ■ Memory module ■ Hard drive ■ Display ■ Keyboard, TouchPad, and pointing stick ■ Audio ■ Intel Pentium-M processors ■ Fan ■ PC Card ■ Smart Card Reader ■ Modem, NIC, ISDN, and wireless devices ■ TPM security module The notebook 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 left side of the notebook. Ä CAUTION: To properly ventilate the notebook, allow at least a 7.6-cm (3-inch) clearance on the left and right sides of the notebook. Maintenance and Service Guide 1-21

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Product Description
Maintenance and Service Guide
1–21
1.6
Design Overview
This section presents a design overview of key parts and features
of the notebook. 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:
■
Memory module
■
Hard drive
■
Display
■
Keyboard, TouchPad, and pointing stick
■
Audio
■
Intel Pentium-M processors
■
Fan
■
PC Card
■
Smart Card Reader
■
Modem, NIC, ISDN, and wireless devices
■
TPM security module
The notebook 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 left side of the notebook.
Ä
CAUTION:
To properly ventilate the notebook, allow at least a 7.6-cm
(3-inch) clearance on the left and right sides of the notebook.