HP AM872A#ABA Presario Select 1200 Series Maintenance and Service Guide - Page 15
Preliminary Steps
UPC - 884420117797
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Maintenance & Service Guide Presario Series Models: 1246, 1247, 1277, 1278, and 1279 | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations Troubleshooting Preliminary Steps Preliminary Steps Clearing the Power-On Password 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, clear the password . 2. Run Computer Checkup. 3. Turn off the computer and its external devices. Power-On Self 4. Disconnect any external devices that you do not want to test. Do not Test (POST) disconnect the printer if you want to test it or use it to log error messages. Compaq IMPORTANT: Diagnostics IMPORTANT: If the problem only occurs when an external device is Diagnostic Error 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 Codes external device connected. Troubleshooting Without Diagnostics Solving Minor 5. Install loopback plugs in the serial and parallel connectors if you would like to test these ports. Problems 6. Ensure the hard drive is installed in the computer. Contacting Compaq Support 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 POST.