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How do I replace the cmos battery in my compaq presario model 1250?

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1. Open up the side of the desktop.
2. Find the batter, a silver coin-like item on your motherboard.
3. With a small flat bladed screwdriver, press forward the release clip. The batterh will spring out.
4. Put the new battery in with the flat shiny side up, just snap it in place.

Posted on Jun 22, 2008

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How do I remove/replace the hp compaq presario cq60-615DX internal battery. Not the CMOS one; the other large one at the back. There is no slider/lever. thanks


In order to remove the battery pack you should slide the Lock key to the Unlock position and keep it there until you have removed the battery. In the following video (at 00:08) you can see how to do it and replace the CMOS battery also. Hope that helps. How to replace the CMOS Battery in the Compaq Presario CQ60 Laptop

Here is the manual you can read more and see how to on page 46.
http://tim.id.au/laptops/hp/hp%20g60%20compaq%20presario%20cq60.pdf

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Unable to log in


Which operating system ?
The Compaq Presario CMOS password is an administrative security measure built into the firmware of a Compaq computer.

This password is stored in the motherboard's BIOS (Basic Input Output System) and provides for hardware-level security.

This password may be accidentally set or forgotten over time and must be reset in order to boot the computing system.

Disconnect the Compaq computer from any electrical sources and remove the side access panel from its case.

This may require the removal of one or more thumbscrews on the rear of the computer case.


WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules

Locate the CMOS battery.

This battery is a round button-type battery located in the bottom-right corner of the Compaq Presario motherboard.

Grip the battery by its edges and pull it straight away from the motherboard to remove it.


Press and hold the power button on the case for ten seconds to remove any remaining electrical current from the computer.

This removes the CMOS settings and returns it to the default state of having no password set.

Replace the CMOS battery.


Replace the computer's side access panel and re-establish any previously severed electrical connections.
http://www.youtube.com/watch?v=zjGHpJqVJkM
Replace a CMOS battery inside a desktop computer

http://www.dewassoc.com/support/bios/bios_password.htm

http://www.tips4pc.com/articles/Computer Troubleshooting/Remove the CMOS battery to reset the bios password.htm

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1 Answer

How can i change the CMOS battery of my Laptop Compaq Presario V2000?


Here is the location of the appropriate Service Manual - you will have to partially disassemble your computer to reach the battery and replace it.

http://h10032.www1.hp.com/ctg/Manual/c00444244.pdf

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1 Answer

Bios rom checksum error on a compaq presario SR1365CL


This is a typical sign that the CMOS battery (on the motherboard) has failed & needs to be replaced. After replacing the CMOS battery, you will need to boot into BIOS & save CMOS settings.

Jul 13, 2011 | Computers & Internet

1 Answer

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write down the model number or the volt of your CMOS battery and go to any computer hardware shop..
buy the CMOS battery corresponding to your model number or your battery's volt...

all the CMOS battery are almost similar

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1 Answer

Date keeps reverting to 10/08 and clock won't keep time


i donno much........ may be ur comp inbuilt[battery used 4 time setting] battery would hav run out....... i think so

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I need to replace the CMOS battery in a Presario 906US Laptop


Here is service manual for Compaq Presario 900 (download parts one by one, then extract):
Part 1
Part 2
Part 3
Part 4

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1 Answer

Where is the CMOS battery on my Compaq Presario 1210 laptop?


you have to open back side of ur laptop and u can find ur mother board...on that u can see cmos battery...

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