Preliminary Steps - Compaq Presario 1900 XL1 Maintenance & Service Manual

Troubleshooting Section
Models: XL1, XL160, XL161, XL162, XL163, and XL165
Before You Begin
Removal Sequence
Product Description
Troubleshooting

Preliminary Steps

Before running POST, complete the following preliminary steps:
1. If a power-on password has been established, type the password and press the
Enter key. If the password is not known,
2. Run Compaq
3. Turn off the computer and its external devices.
4. Disconnect any external devices that you do not want to test. Do not disconnect
the printer if you want to test it or use it to log error messages.
If the problem only occurs when an external device is connected to the
computer, the problem may be related to the external device or its cable.
IMPORTANT:
Verify this by running POST with and without the external device
connected.
5. Install loopback plugs in the serial and parallel connectors if you would like to test
these ports.
6. Ensure the hard drive is installed in the computer.
file:///C|/download/www.compaq.com/athome/support/msgs/1900XL/5prelim.html (1 of 2)6/27/2004 11:46:24 AM
Maintenance & Service Guide
Presario 1900 Series
Specifications
Troubleshooting
Pin Assignments
diagnostics.
United States
Battery Operations
clear the password.
June 27, 2004
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