HP AM872A#ABA Presario Select 1230 Series Maintenance and Service Guide - Page 21
Clearing the Power-on Password
UPC - 884420117797
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Maintenance & Service Guide Presario 1200 Series Models: 1230 and 1232 | Home Page | Notice | Preface | Product Description | Troubleshooting Illustrated Parts Catalog | Removal & Replacement Procedures | Specifications Pin Assignments | Battery Pack Operations Clearing the Power-on Password Clearing the power-on password requires removing all Setup attributes that are programmed in the CMOS. The RTC battery is located on the system board. If the password is not known, clear it by performing the following steps: 1. Turn off the computer. 2. Disconnect the power cord. 3. Remove the battery pack. 4. Remove the Palmrest Cover with Touch Pad. 5. Remove the heatspreader. 6. Remove the keyboard. 7. The dip switch contains four bits. Set the third bit to ON for 30 seconds and return it to OFF position. 8. Reassemble the computer. 9. Turn on the computer to verify that the power-on password has been cleared. If it has not been cleared, repeat Steps 1 through 10.