Question about Compaq Presario 3045US Notebook

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My Compaq Presario 3045US cmos battery is bad and needs to be replaced. Where do I locate the battery on my notebook. I don't just want to start disassembling the notebook without knowing where it is and how to replace it

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Download Compaq Presario 3000 series laptop service guide,
Scroll from page 83 to 117 for instructions how to access CMOS battery (RTC battery).

Posted on Apr 21, 2009

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Compaq Presario CQ62 faulty BIOS or not!?


Your computer will not start up with out a BIOS working, it starts the hard drive and loads the operating system.

The CMOS memory stores parameters which are updated by the operating system. Hence it needs a battery to keep the parameters. It also needs the operating system to make any necessary changes to start up again.

I do not know your full model number, but this utility will check if your pc is bootable.

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You can also find all the drivers, bios updates etc. on HP.com

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Try reinstalling the wireless driver.
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http://h10032.www1.hp.com/ctg/Manual/c00444244.pdf

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My copaq laptop 3045 us does not charge the battery. What is wrong? How do I get it fixed?


if you can use you laptop while the power brick is plugged in the AC outlet, replace the battery.

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1 Answer

Need CMOS battery in my Compaq V2000. Where is it located?


The CMOS battery is located on the motherboard, just behind the speaker/headphone jacks.

You will have to remove the cover (and be careful in the process) to access this area.

With the red arrow, I've indicated on the photo the location of the CMOS battery.

1f9da46.jpg

I would highly recommend that you document your procedures and take lots of digital photographs to help you rebuild the device after you replace the battery.

Since you will not find a manual to do this process, you will have to create your own.

Good luck
God Bless

-Carlos:

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1 Answer

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):
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Open the RAM door and remove the two screws underneath. The optical drive will slide right out.

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