compaq presario 900 series User Manual

							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 accessible only 
when you enter Computer Setup by 
turning on (not restarting) the computer.
Password Options
Password options can be 
selected only when a 
power-on password has 
been set.Enable/disable:
■QuickLock
■QuickLock on Standby
■QuickBlank
✎To enable QuickLock on Standby or 
QuickBlank, you must first enable 
QuickLock.
Device Security Enable/disable:
■Ports or diskette drives*
■Diskette write*
■CD-ROM or diskette startup
✎Settings for a DVD-ROM can be 
entered in the CD-ROM field.
System IDs Enter identification numbers for the computer, 
a docking base, and all battery packs in the 
system.
*Not applicable to SuperDisk LS-120 drives.
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							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 system.
Device Options
■Enable/disable the embedded numeric 
keypad at startup.
■Enable/disable multiple standard pointing 
devices at startup. (To set the computer to 
support only a single, usually nonstandard, 
pointing device at startup, select Disable.)
■Enable/disable USB legacy support for a 
USB keyboard. (When USB legacy support 
is enabled, the keyboard works even when a 
Windows operating system is not loaded.)
■Set an optional external monitor or overhead 
projector connected to a video card in a 
docking base as the primary device.
(When the computer display is set as 
secondary, the computer must be shut down 
before undocking from a docking base.)
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							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 
identically equipped. (Select Disable to 
recognize the docking bases as a single 
docking base; select Enable to recognize 
the docking bases individually, by serial 
number.)
■Enable/disable the reporting of the 
processor serial number by the processor 
to the software.
HDD Self Test Options Run a quick comprehensive self test on hard 
drives in the system that support the test 
features.
* Video modes vary even within regions. However, NTSC is common in 
North America; PAL, in Europe, Africa, and the Middle East; NTSC-J, in Japan; 
and PAL-M, in Brazil. Other South and Central American regions may use 
NTSC, PAL, or PAL-M.
Table 2-3
Advanced Menu (Continued)
Select To Do This
272638-001.book  Page 6  Thursday, July 25, 2002  4:21 PM 
						

							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
Configuration Information
1. Access Compaq Diagnostics by selecting Start > Settings > 
Control Panel > Compaq Diagnostics.
2. Select Categories, then select a category from the 
drop-down list.
❏To save the information, select File > Save As.
❏To print the information, select File > Print.
3. To close Compaq Diagnostics, select File > Exit.
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							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 maximum testing on a selected 
device.
◆To run all tests for your selected device, click 
Check All.
◆To run only the tests you select, click Uncheck All, 
then select the checkbox for each test you want 
to run.
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							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 session.
❏Log tab—Lists tests run on the system, the number of 
times each test has run, the number of errors found on 
each test, and the total run time of each test.
❏Error tab—Lists all errors found in the computer with 
their error codes.
8. Select a tab to save the report:
❏Log tab—Select Save.
❏Error tab—Select Save.
9. Select a tab to print the report:
❏Log tab—Select File > Save As, then print the file from 
your folder.
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							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 3
2.13 No OS Loading From Diskette Drive
2.14 No OS Loading From CD- Or DVD-ROM Drive
2.15 No Audio, Part 1
2.16 No Audio, Part 2
2.17 Nonfunctioning Device
2.18 Nonfunctioning Keyboard
2.19 Nonfunctioning Pointing Device
2.20 No Network Or Modem Connection
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							Troubleshooting
Maintenance and Service Guide2–11
Flowchart 2.1 - Initial Troubleshooting
Connecting
to network
or modem?
Begin
troubleshooting.
Is there
power?
Is the OS
loading? Is there video?
(no boot)
Is there
sound?Beeps,
LEDs, or error
messages?
Keyboard/
pointing device 
working?Go to
Flowchart 2.17,
Nonfunctioning
Device. Go to
Flowchart 2.2,
No Power, Part 1.
Go to
Flowchart 2.6,
No Video, Part 1.All drives
working?
Y
Y
Y
Y
YY
Y
Y N N
N
N
N
End
N
N
N
Go to
Flowchart 2.9,
No OS Loading.
Go to
Flowchart 2.15,
No Audio.Go to
Flowchart 2.18,
Nonfunctioning 
Keyboard,
or Flowchart 2.19, 
Nonfunctioning 
Pointing Device. Check
LED board, 
speaker 
connections.
Go to
Flowchart 2.20,
No Network or 
Modem 
Connection.
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							2–12Maintenance and Service Guide
Troubleshooting
Flowchart 2.2 - No Power, Part 1
1. Reseat the power cables in the docking 
station and at the AC outlet.
2. Ensure that the AC power source is active.
3. Ensure that the power strip is working.
Done
Remove from
docking station
(if applicable).
Power up
on battery
power?
Power up
on AC
power?
Power up
in docking
station?
Power up
on battery
power?
Power up
in docking
station?Done *Reset
power.
*Reset
power.Power up
on AC
power?
NY YN
N
YN
N
Y Y
YN
* On some models there is a separate reset 
button. On some models the computer may be 
reset using the Standby switch and either the 
lid switch or the main power switch.Go to
Flowchart 2.4,
No Power,
Part 3.Go to
Flowchart 2.3,
No Power,
Part 2.
Go to
Flowchart 2.8,
Nonfunctioning
Docking Station. No power 
(power LED
is off).
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							Troubleshooting
Maintenance and Service Guide2–13
Flowchart 2.3 - No Power, Part 2
Continued from 
Flowchart 2.2,
No Power, Part 1.
Visually check for
debris in battery 
socket and clean 
if necessary.
Done
NY
Power on? Check battery 
by recharging, 
moving it to 
another computer, 
or replacing it.
Power on?
Done
Y
Replace 
power supply
(if applicable).
N
Power on?
Done
YN
Go to
Flowchart 2.4,
No Power,
Part 3.
272638-001.book  Page 13  Thursday, July 25, 2002  4:21 PM