compaq evo n610c and evo n600c User Manual

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 make modifications to any printed wiring board. 
Improper repairs can create a safety hazard. Any indication of 
component...

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.
Using Computer Setup
Information and settings in Computer Setup are accessed from 
the File, Security, or Advanced menus:
1. Turn on or...

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...

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.
✎Drive Lock Settings are...

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...

2–6Maintenance and Service Guide
Troubleshooting
Device Options 
(continued)■Change the parallel port mode from 
Enhanced Parallel Port (EPP, the default 
setting) to standard, bidirectional, EPP or 
Enhanced Capabilities Port (ECP).
■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...

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...

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 Test 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...

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 you 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. Click Begin Testing.
7. Select a tab to view a test report:
❏Status tab—Summarizes the tests run, passed, and failed 
during the current testing...

2–10Maintenance and Service Guide
Troubleshooting
2.3 Troubleshooting Flowcharts
Ta b l e  2 - 4
Troubleshooting Flowcharts Overview
Flowchart Description
2.1 Initial Troubleshooting
2.2 No Power, Part 1
2.3 No Power, Part 2
2.4 No Power, Part 3
2.5 No Power, Part 4
2.6 No Video, Part 1
2.7 No Video, Part 2
2.8 Nonfunctioning Docking Station
2.9 No Operating System (Os) Loading
2.10 No Os Loading From Hard Drive, Part 1
2.11 No Os Loading From Hard Drive, Part 2
2.12 No Os Loading From Hard Drive, Part...