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Set a power on password and cannot remember it for compaq c300

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  • sev01 Oct 07, 2008

    I set up a power on pasword for my laptop and now I cannot remember what it is.I took the battery out from the back and left it for 20 mins thinking it might wipe it out but it did not. Is there somthing i can do to remove it.

  • ashenafis Mar 21, 2009

    I have a HP dc5100 desktop with a POWER ON password I have forgotten,

    How can I completely remove the password and get my informations

  • Stephen Wilkins
    Stephen Wilkins May 11, 2010

    Yes it requires skill and dexterity you need to take the laptop apart and remove the cmos battery. Id suggest bringing it in to a computershop to let a skilled tech do it, well worth the money.

  • Stephen Wilkins
    Stephen Wilkins May 11, 2010

    c300 is a notebook not a desktop

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We need to remove the battery (cmos) for a bit to clear the passwords, heres how:
Before you begin any removal or installation procedures:
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 cord.
4. Loosen the Phillips PM2.5×5.0 captive screw that
secures the memory/Mini Card module compartment cover
to the computer. (bottom of laptop)will see memory chips or slot when the cover is opened.
5. Lift the right side of the cover and swing it up and to the
left and remove it.
6. Make note of which antenna cable is attached to which
antenna clip on the Mini Card module, and then disconnect
the auxiliary and main antenna cables from the Mini
Card module.
7. Remove the two Phillips PM2.0×4.0 screws that secure the
Mini Card module to the computer.
8. Remove the Mini Card module by pulling the module away
from the socket at an angle .
Reverse the above procedure to install a Mini Card module
9. Remove the RTC battery from the socket on the
system board.
10. Wait approximately 5 minutes.
11. Replace the RTC battery and reassemble the computer.
12. Connect AC power to the computer. Do not reinsert any
batteries at this time.
13. Turn on the computer.
All passwords and CMOS settings have been cleared.
I leave the new password field blank unless you have worries about someone changing your settings in the BIOS.


Posted on Oct 07, 2008

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Increase its power save time.Go to utility/Counter, then press check details, then select administrator mode, then enter password 12345678, now in copier setting or in system setting increase the power save time of your machine.It will not resume again.

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I have a hp-compaq presario c300 and i forgot my power- on password. i need help! or need backdoor password in order to fix. please!


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1.Reinstall the whole thing...
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Compaq Presario laptop C300 - issues (orange light)


Sometimes when a PC gets stuck in hibernation mode, the only way to reset it is to remove the CMOS battery for 10 minutes and replacing it. It resembles a large watch battery and is usually located near the center of the motherboard.

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YOu can reset bios password with 2 method.
(1) open back cover of laptop then find motherbord .Pull cmos cell from motherbord for 15 minutes then again put it in it's position .then it not ask for password.
(2)You can clear password with jumper settings find jumper on motherbord named clear cmos it has 3 pin .1-2-3
Put jumper in 2-3 position then again put it in 1-2 position then check .
Let me know if you need more assistance.
Thanks.

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Dear friend,
Try to find the similar hinge on your c300 at the nearest HP dealer, if you can't disassemble it just bring your laptop and ask for assistant, as far as I can remember, the hinge is sold as part at affordable price.
GoodLuck

Best Regards,
bionic23

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I turn on my compaq presario c300 and it immediately take me to an enter power-on password screen


Hello,
A password on boot is not set by default. The owner activates this option. If some prankster or michief maker has entered a password on boot on your computer without your knowing it, there is nothing you can do, save taking the machine to an HP Certified Service Center to have the password removed or reset.
As the password on boot is a deterrent against computer thefts, you might be asked to show proof of ownership. This certainly is the case with Toshiba laptops.

Hope it helps.

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1 Answer

Compaq presario c300 stuck in hibernation mode...won't recover or start up at all.


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