HP Presario 300 Presario 305 Series Maintenance and Service Guide - Page 57

Preliminary Steps

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Before You Begin Removal Sequence Product Description Presario 305 Model Specifications Troubleshooting Pin Assignments Preliminary Steps Parts Catalog Battery Operations Index Use AC power when running POST, Computer IMPORTANT: Setup, or Computer Checkup. A low battery condition could initiate Hibernation and interrupt the test. Before running POST, complete the following steps: 1. If a power-on password has been established, type the password and press Enter. If the password is not known, clear the password. 2. Ensure the hard drive is installed in the computer. 3. Ensure that the battery pack is installed in the computer and the power cord is connected to the computer and plugged into an external AC power source. 4. Turn on the computer. 5. Run Computer Setup. 6. Turn off the computer and its external devices. 7. Disconnect any external devices that you do not want to test. If you want to use the printer to log error messages, leave it connected to the computer. If the problem only occurs when an external device is connected to the IMPORTANT: computer, the problem may be the external device or its cable. related to Verify this by running POST with and without the external device connected. 8. Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you plan to test these ports. When the preliminary steps are completed, you are ready to run POST.

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Presario 305 Model
Before You Begin
Specifications
Parts Catalog
Removal Sequence
Troubleshooting
Battery Operations
Product Description
Pin Assignments
Index
Preliminary Steps
IMPORTANT:
Use AC power when running POST, Computer
Setup, or Computer Checkup. A low battery
condition could initiate Hibernation and interrupt
the test.
Before running
POST
, complete the following steps:
1. If a power-on password has been established, type the password and press
Enter
.
If the
password is not known,
clear the password
.
2. Ensure the hard drive is installed in the computer.
3. Ensure that the battery pack is installed in the computer and the power cord is connected to
the computer and plugged into an external AC power source.
4. Turn on the computer.
5. Run
Computer Setup
.
6. Turn off the computer and its external devices.
7. Disconnect any external devices that you do not want to test. If you want to use the printer to
log error messages, leave it connected to the computer.
IMPORTANT:
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. Verify this
by running POST with and without the
external device connected.
8. Use Compaq Utilities and loopback plugs in the serial and parallel connectors if you plan to test
these ports.
When the preliminary steps are completed, you are ready to run
POST
.