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CMOS BATTERY ERROR

My machine keep give cmos battery error even if I change the cmos battery. How do I get around the problem.

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You said that you already bought a new cmos bat, but still theres a problem.check the cmos battery socket,power on tyour pc and go to cmos setup,optimize default setting and set time and date.

Posted on May 29, 2008

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I have the battery. What do i need to change it


I'll take it that your computers clock is not keeping time/date or you get a checksum error.

1. Unplug computer and open it up

2. Locate the battery holder and carefully remove the battery from the metal tab

3. Replace battery quickly

4. close computer and start up

5. Press F10 and reset cmos values to default

6. If nothing has been resolved you have bad hardware or a faulty motherboard.

Mar 22, 2014 | Dell Dimension 9150 (DIM915MIN) PC Desktop

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How to verify that the CMOS battery needs to replace


<p>The CMOS battery is named after the Complementary Metal Oxide Semiconductor power. The CMOS has the current date and time functions for desktop and laptop computers. It allows the computer to automatically adjust the time, even on computers that are disconnected for long time. When a computer no longer has the date and time and forget it on every boot, the CMOS battery probably needs replacing. Some computers have messages when the battery is weak, while others just lose the current date and time after each shutdown.<br /> <p>Time & Date Errors<span> </span><br /> <p><span> </span><br /> <p>1. Turn on the computer. Look in the task bar at the bottom right. Make sure the date and time is set correctly. Double-click the time and click the up or down arrow to switch to the correct time. Click on the arrow next to month to change the month. Click "OK" when finished.<br /> <p><br /> <p>2. Turn off the computer. Wait 3 to 5 minutes and start the machine.<br /> <p><br /> <p>3. Look on the taskbar to see if time was lost and said a strange date January 1, 2000. Replace the CMOS battery, if this is the case.<br /> <p><br /> <p>CMOS Error Message<br /> <p>1. Look for error messages like "CMOS checksum error", "CMOS Read Error" or "CMOS battery failure" when you start your computer. These errors are caused in the machines shut down for several months or when the CMOS must be replaced.<br /> <p><br /> <p>2. Let the computer on for 24 hours. Restart the computer and find the error.<br /> <p><br /> <p>3. Change the CMOS as the return error.<br />

on Jun 21, 2011 | PC Desktops

1 Answer

Hard disk not found


You may need a new Cmos battery on the motherboard. It's used to supply power to store the bios settings, it's not rechargable either, when it's dead it has to be replaced.

How to change Cmos Battery here:Cmos

Feb 02, 2012 | PC Desktops

1 Answer

Clock loses time. Have downloaded latest BIOS update but did not fix problem. Do I need to install a new battery and, if so, how? Computer is a HP Pavilion a6030n running Vista 32 bit.


it is advisable to change your CMOS (complementary metallic oxide semi-conductor) battery. this battery helps save and keep up to current your settings even when your shutdown your machine. if it is weak, then it might not keep the settings properly

Oct 10, 2010 | PC Desktops

1 Answer

Acer aspire IE3450P BIOS Password


A BIOS password is a protection measure that can be used to stop someone powering up a computer system or making changes in some of the computers most sensitive areas. Many big name computer manufacturers such as Dell and HP lock the customers out of this area because they don’t want the customer changing anything and potentially damaging the machine (which the manufacturer may have to warranty). However, when someone like a computer technician or hardware enthusiast needs to make some hardware changes to the computer, they will need to access the BIOS. Here are some methods to bypass or remove a BIOS password.

NOTE: Do not try to guess the password on a pass worded Hard Drive. 3 wrong guesses will often result in the information on the hard drive being lost forever.
How to Bypass or Remove a BIOS Password by Removing the CMOS Battery:
The simplest way to remove a BIOS password is to simply remove the CMOS battery. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by small battery inside the computer called a CMOS battery. If we pull out this battery, the computer will forget a lot of its hardware settings, including its BIOS password. This should not be performed on Laptops if you are not experienced working with laptop hardware.
remove-battery.thumbnail.jpgAnyway, open up the computer case using a screw driver and locate the flat, circular and metallic CMOS battery. It should look something like the picture to the right. Some computers have this part standing upright.
Once you have located it, observe how the latches are holding it. There are many different ways to remove a CMOS battery but the most common way on newer computers can be seen in the picture below.
remove-bios-battery.thumbnail.jpg Make sure to power down the computer, unplug the power cables and unplug any USB devices if they are powered. The computer must not be able to get power from anywhere for this to work. Take out the CMOS battery and wait 10 – 25 minutes before putting it back in. The reason for this wait is because the computer can still store power in its capacitors even though everything is unplugged. The waiting period allows enough time for them to discharge.
Plug everything back in, power up the computer and enter the BIOS again. If everything went well there should be no more password. In some cases, if you get weird error messages during boot up now, you will need to go to “Load BIOS Defaults” in BIOS and save the changes to fix them.


Please rate me if this solution works for you

Thanks......Have a great time.


Jul 19, 2010 | Acer PC Desktops

1 Answer

I changed the HDD password and when i tried to enter it, its not accepting and after 3 tries disables my system. is there any way around this or a way of resetting the password or system


Hi,
The simplest way to remove a BIOS password is to simply remove the CMOS battery. A computer will remember its settings and keep the time even when it is turned off and unplugged because these parts are powered by small battery inside the computer called a CMOS battery. If we pull out this battery, the computer will forget alot of its hardware settings, including its BIOS password. This should not be performed on Laptops if you are not experienced working with laptop hardware.
Hope this has helped you... Thanks...

Jul 09, 2010 | PC Desktops

1 Answer

''Firmware has detected cmos battery failure''


CMOS battery in the motherboard much measured .3 volt which is a Lithium coin cell battery.check whether the battery gives the correct measurement (recomend to use branded battery like from sony).
if the measurement is correct then reset your BIOS setting by removing all the jumper in the motherboard for about 60 secs.and place it again and start your pc;set yr BIOS to default setting,
let me know if it comes handy to you

Dec 04, 2009 | Intel PC Desktops

2 Answers

Dell GX270 does not recognise HDD after CMOS battery failure


It Seems to me IDE HDD In your BIOS should be set to on.

Mar 11, 2009 | Dell OptiPlex GX270 PC Desktop

1 Answer

Presarion 1300nx will not boot


Try removing the CMOS Battery
First check to see if the memory is the correct match.
After sitting the memory sticks remove the COMS battery.(looks like a watch battery) connected to the mother board. Give yourself thirty second and re seat the CMOS Battery than try stating your computer.

Jan 26, 2009 | PC Desktops

1 Answer

Troubleshooting a computer that doesnt start


It's more than likely the CMOS battery a disk shaped 3V watch type battery found on the motherboard. Change this then reset time and other settings and your away.

Dec 26, 2006 | Compaq Deskpro EN PC Desktop

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