Preliminary Steps - Compaq Presario 1800T Maintenance And Service Manual

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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 Computer
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,
IMPORTANT: the problem may be related to the external device or its cable. 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.
7. Ensure that the battery pack is inserted in the computer and the computer is
connected to an external AC power source.
When the preliminary steps are completed, you are ready to run
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Maintenance & Service Guide
Presario 1800 Series
Models: 1825 and 1800T
Pin Assignments | Battery Pack Operations
Checkup.
clear the password.
POST.