Question about HP Pavilion N3390 Notebook

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Cmos battery? I have a hp pavilion n3390 and it will not keep the date or time is that the cmos battery?  If so how do I get to it to change it?

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Re: cmos battery?

Computer CMOS information CMOS is an on-board semiconductor chip powered by a CMOS battery inside IBM compatible computers that stores information such as the system time
How to replace the CMOS battery. Information about why time may be lost or decreasing rapidly and how to replace your computer cmos battery

Computer Battery Help The first type of battery is the backup battery, which is commonly referred to as the "CMOS battery".

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Posted on Dec 19, 2007

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My computer clock doesnt keep time and will not syncronize with internet time

If there is no charge from the CMOS battery, or little charge even, you will notice your clock set to 12:00 and the date to Jan. 1 every time you start your computer. Your computer will also ask you where it should boot from when you turn it on. These are the most basic signs your CMOS battery is going dead and will be your ultimate test of the battery Hope this helps.

Jan 09, 2013 | HP Pavilion dv4000 Notebook

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Hp pavilion clock won't keep time

try finding the time zone you are in and use that to set the time, changing the numbers individual will end up with the time going back to the time zone time. So change the time based on the time zone

Aug 04, 2012 | HP PC Laptops

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Advent 5431 date keeps changing back to 2008

IS your TimeZone is Correct?
Right click on your clock, choose Adjust Date/Time.
Click Time Zone Tab. Make sure your Time zone is correctly set.

Boot into the BIOS (setup) screens and check the date and time there. If the date is off by years then that verifies you need a new CMOS battery. Do not confuse the CMOS battery with the large external battery you run the computer with.

Jul 25, 2012 | Advent Netbook

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Friend gave me an old hp pavilion xz1185 laptop,but he dont recall password for cmos to get in,can i reset cmos?

This may not work but give it a try.
Remove the BIOS battery and the main battery from the laptop for 15+ minutes. Insert the batteries back into the laptop and the BIOS will return to the default setup, hopefully removing the BIOS password. You need to go into the BIOS configuration to set the Time and Date etc. again.

Nov 22, 2009 | HP Pavilion dv6000z Notebook

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Will laptop work with dead cmos battery?

Yes, but each time you start the computer you have to enter the BIOS to set the proper time and date. This is essential for certain progra,s to run correctly, when the computer shuts off, everything will be reset once more.

Oct 08, 2009 | HP Pavilion dv1000 Notebook

1 Answer

Time date is not maintained automaticaly properly

Update the keyboard battery controller Regularly check for updated versions of the system BIOS and keyboard battery controller. To determine if an update is available for your notebook PC, go to the Drivers and Downloads site . Enter the notebook model and the keywords Update BIOS . Follow the instructions presented for your specific notebook

Jul 03, 2009 | HP Pavilion DV1049cl Notebook

2 Answers

Hp pavilion dv6633 won't start. Light up, then

Sorry to here about your DV6633 start up problems.
1st. It would be good to know any other problems you may have had in the past either related or non related to you current problems..
I take it you are running with a charged battery? and the unit has not been dropped lately.?
2nd. If you are receiving a charge light on the front left of cover, your battery is charging and your power supply is in working condition.
3rd. I would remove any media from the CD/DVD and disconnect battery and with incoming power from supply.
4th. Flip unit over and remove the large Black cover, where you will find the Memory and CMOS Battery.
5ft. Carefully remove memory setting them side from contact with other components.
6st. Disconnect CMOS Battery found at the top right of memory. This is the battery backup for memory, system time and date and other features. This with have a white connector which connects to the board.
7th. Flip unit over and open case cover, hold down the power button for at least 30 seconds.
release the power button and close case. Flip back over to bottom again.
8th. Reinstall the CMOS Battery Connector, memory, cover.
9th. and last of all the Smaller Black Cover just to the left is where your Hard Drive is located.
remove the two screws and cover, on the Top of the Hard Drive you should see a Plastic Pull Tab to remove the Hard Drive.
Remove the drive carefully it is frag-il. Re-seat the drive and re-install cover.
Turn the unit over, re-install the battery, plug it in an turn it on.
Pressing the F-10 key will enter the BIOS setting, here you can change the time and date.
Note if you have not been prompted to change Time and Date, you did not remove CMOS battery.
If the unit will run in the BIOS setup, your problem is more than likely software related.
You should have a Utility for checking Hard Drive which in most cases takes about 1-hour, unless you have a failed hard drive, this will show in most cases within the first five minutes because the boot sector is the first and last to be checked by the utility.

If all checks OK you may want to reload your firm and software to factory specs.
This can be done buy hitting the F-7 Key at the start up. ( That is, if you haven't deleted the recovery partition.)
Good luck, keep the unit off the carpet and Bed as it will not vent or cool properly.
John Ray

Jun 14, 2009 | HP Pavilion dv6000z Notebook

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Feb 02, 2008 | HP Pavilion N3390 Notebook

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