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compaq evo notebook n800c series User Manual

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Page 21

1–16Maintenance and Service Guide
Product Description
1.5 Design Overview
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:
■Memory expansion board
■Hard drive
■Display
■Keyboard/TouchPad or pointing stick
■Audio
■Intel Mobile Pentium 4 processors with...

Page 22

Maintenance and Service Guide2–1
2
Troubleshooting
ÅWARNING: Only authorized technicians trained by Compaq should 
repair this equipment. All troubleshooting and repair procedures 
are detailed to allow only subassembly/module level repair. 
Because of the complexity of the individual boards and 
subassemblies, no one should attempt to make repairs at the 
component level or to make modifications to any printed wiring 
board. Improper repairs can create a safety hazard. Any indication 
of component...

Page 23

2–2Maintenance and Service Guide
Troubleshooting
■Compaq Diagnostics—A system information and diagnostic 
utility that is used within your Windows operating system. 
Use this utility whenever possible to:
❏Display system information.
❏Test system components.
❏Troubleshoot a device configuration problem in 
Windows 2000, Windows XP Professional, or 
Windows XP Home.
✎It is not necessary to configure a device connected to a USB 
connector on the computer or an optional docking base.
Using Computer Setup...

Page 24

Troubleshooting
Maintenance and Service Guide2–3
Selecting from the File Menu
Table 2-1
File Menu
Select To Do This
System Information■View identification information about the 
computer, a docking base, and any battery 
packs in the system.
■View specification information about the 
processor, memory and cache size, and 
system ROM.
Save to Floppy Save system configuration settings to a diskette.
Restore from Floppy Restore system configuration settings from a 
diskette.
Restore Defaults Replace...

Page 25

2–4Maintenance and Service Guide
Troubleshooting
Selecting from the Security Menu
Table 2-2
Security Menu
Select To Do This
Setup Password Enter, change, or delete a setup password. 
(The setup password is called an administrator 
password in Compaq Computer Security, a 
program accessed from the Windows Control 
Panel.)
Power-on Password Enter, change, or delete a power-on password.
DriveLock Passwords Enable/disable DriveLock; change a DriveLock 
User or Master password.
✎DriveLock Settings are...

Page 26

Troubleshooting
Maintenance and Service Guide2–5
Selecting from the Advanced Menu
Table 2-3
Advanced Menu
Select To Do This
Language (or press F2) Change the Computer Setup language.
Boot Options Enable/Disable:
■QuickBoot, which starts the computer more 
quickly by eliminating some startup tests. 
(If you suspect a memory failure and want 
to test memory automatically during startup, 
disable QuickBoot.)
■MultiBoot, which sets a startup sequence 
that can include most bootable devices and 
media in the...

Page 27

2–6Maintenance and Service Guide
Troubleshooting
Device Options 
(continued)■Change the parallel port mode from EPP 
(Enhanced Parallel Port [default]) to 
standard, bidirectional, EPP or ECP 
(Enhanced Capabilities Port).
■Set video-out mode to NTSC (default), PAL, 
NTSC-J, or PAL-M.*
■Enable/disable all settings in the SpeedStep 
window. (When Disable is selected, the 
computer runs in Battery Optimized mode.)
■Specify how the computer recognizes 
multiple identical docking bases that are 
identically...

Page 28

Troubleshooting
Maintenance and Service Guide2–7
2.2 Using Compaq Diagnostics
When you access Compaq Diagnostics, a scan of all system 
components is displayed on the screen before the Compaq 
Diagnostics window opens.
You can display more or less information from anywhere within 
Compaq Diagnostics by selecting Level on the menu bar.
Compaq Diagnostics is designed to test Compaq components. 
If non-Compaq components are tested, the results may be 
inconclusive.
Obtaining, Saving, or Printing...

Page 29

2–8Maintenance and Service Guide
Troubleshooting
Obtaining, Saving, or Printing Diagnostic
Test Information
1. Access Compaq Diagnostics by selecting Start > Settings > 
Control Panel > Compaq Diagnostics.
2. Select the Te s t tab.
3. In the scroll box, select the category or device you want 
to test.
4. Select a test type:
❏Quick Test—Runs a quick, general test on each device in 
a selected category.
❏Complete Test—Performs maximum testing on each 
device in a selected category.
❏Custom Test—Performs...

Page 30

Troubleshooting
Maintenance and Service Guide2–9
5. Select a test mode:
❏Interactive Mode—Provides maximum control over the 
testing process. You determine whether the test was 
passed or failed and may be prompted to insert or remove 
devices.
❏Unattended Mode—Does not display prompts. If errors 
are found, they are displayed when testing is complete.
6. Select the Begin Testing button.
7. Select a tab to view a test report:
❏Status tab—Summarizes the tests run, passed, and failed 
during the current...
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