HP 8510p HP Compaq 8510p Notebook PC and HP Compaq 8510w Mobile Workstation - - Page 50
Unknown user password, Wait approximately 5 minutes. - cmos battery
UPC - 883585842872
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Unknown user password If the computer you are servicing has an unknown user password, follow these steps to clear the password: NOTE: These steps also clear CMOS. 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 45). 5. Remove the real-time clock (RTC) battery (see RTC battery on page 74). 6. Wait approximately 5 minutes. 7. Replace the RTC battery and reassemble the computer. 8. Connect AC power to the computer. Do not reinsert any batteries at this time. 9. Turn on the computer. All passwords and all CMOS settings have been cleared. 42 Chapter 4 Removal and replacement procedures