Compaq Presario 1600 Presario 1600XL Series Maintenance and Service Guide - Page 84
Preliminary Steps
UPC - 811535018572
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Presario 1600 Series Models: 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144, 1600-XL145, 1600-XL146, 1600-XL147, and 1600-XL150 Before You Begin Specifications Removal Sequence Product Description Battery Operations Troubleshooting Parts Catalog Pin Assignments MSG Index Preliminary Steps Clearing the Power-On Password Power-On Self Test (POST) Compaq Diagnostics Diagnostic Error Codes Troubleshooting Without Diagnostics Solving Minor Problems Contacting Compaq Support 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, clear the password. 2. Run Computer Checkup. 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 IMPORTANT: 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 POST.