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Need to know how to reset power on password for hp

How everyone mt name is Antonio Navarro, I work for the IT department for the Monterey Peninsula Unified Scool District, and need to know how to reset power on password for hp compaq 6510b.A teacher set the Power on Password. Any help that be great.

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If this is a BIOS Lockout Password, then you would need to Pull the CMOS battery From the laptop... Which most likely means Complete Disassembly of the laptop just to get to the battery... You would have to unplug the battery... Make sure the Laptops Charging Battery is also Removed and the AC Adapter is NOT plugged in...
Once the CMOS battery is removed, Hold the power button down for 30 seconds... then replace the battery and see if it is bypassed/removed..

There is a good chance that the BIOS password is on a security chip on the motherboard and if this is the case, then pulling the CMOS battery will do you no good... You will need to replace the motherboard if this is the case...

Posted on Nov 16, 2009

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Hi,


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.
5. Remove the real-time clock (RTC) battery, (CMOS battery)
6. Wait approximately 30 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 should have been cleared so you will need to set the date and time once the password has been cleared.


Regards.

Posted on Nov 16, 2009

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This is the procedure for removing the BIOS password settings and resetting the CMOS. The link to the service manual is below, it is in PDF format.

try this: Make sure the battery for the notebook is out in step 8


the procedure to reset the CMOS/BIOS is in the maintenance and service guide on page 46.

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 48).
5. Remove the real-time clock (RTC) battery (see RTC battery on page 68).
6. Wait approximately 30 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. http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=3355650&prodTypeId=321957&prodSeriesId=3355650&objectID=c01074450

Posted on Nov 16, 2009

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