Question about Compaq Presario Notebook

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Compaq presario 2500 trying to clear power on password

I have a compaq presaro 2500 mod 2850us forgot passwords can it be cleared to get in to bios?

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If you have forgotten your password and it is stored in the BIOS, then you can reset the BIOS to the factory default state by removing the BIOS battery, wait for over 1/2 hour for the BIOS to discharge and wipe its contents, then reconnect the battery. You will need to reconfigure the BIOS before Windows opens.

I do not know this model, but if the password is stored in an EEPROM chip then it is near impossble to reset it without knowing the actual password. It would be difficult to remove, if you know a friendly hacker with a piece of hardware that can read the contents of the EEPROM chip and then identify the password, so he can tell you what it is.
Best of luck.

Posted on Nov 24, 2008

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Posted on Jan 02, 2017

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I forgot my BIOS password and i can't access it becos i don't know the password.


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Please refer to reset HP Elitebook password. In this passage, you also can learn how to reset Windows administrator password easily.
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If it's a "desktop" computer (not a "laptop") computer, open the case, and look for three gold pins in a row, with a jumper between pins #1 and #2.
With the computer turned off, move the jumper to connect pins #2 and #3. After a few seconds, return the jumper to its original position.
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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.
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plz remove the cmos battery from the mother board for 20 secs and reboot again

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The master password for Compaq is "compaq"
If that doesn't work you need to use a jumpe on the motherboard:
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The backdoor password is a BIOS password that works,
no matter what the user sets the BIOS password to.
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Manufacturers typically change the backdoor BIOS passwords from time to time.
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Clearing bios pasword on my compaq presario


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It would help if you will clear the BIOS or the CMOS of the laptop. It can be cleared by pulling out the cmos battery of the laptop for a long period of time or by locating the jumper/dipswitch on the motherboard that would clear the BIOS. You may go to these links on ways on how to clear an unknown BIOS password.

http://www.computerhope.com/issues/ch000235.htm

http://articles.techrepublic.com.com/5100-10878_11-5031589.html?tag=rbxccnbtr1

http://www.uktsupport.co.uk/reference/biosp.htm

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