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Clock resets to Jan 1, 2008 everytime you shut the computer down

CMOS error comes up but only if the computer is shut down for a period of time.

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Your CMOS battery needs to be replaced. It's a round and flat silver battery found on the motherboard, it's 3V.

Posted on Jan 21, 2009

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Sx 2370-UR30P CMOS battery errors


Hello Anon,

There are two possible reasons for the time and date to reset to the date of manufacture each time the machine is booted up.

Firstly:
The back-up battery is dead and needs replacing, usually it is a CR2032 but check what is stamped on the battery.


Secondly:
The bios reset jumper, on the motherboard, has been left in the "reset" position. Check the manual for your P.C., it will show you the location of the jumper and it's reset and normal positions.
If you don't have the manual, you might get it at:-


Regards,
Ron.

Jun 08, 2014 | Acer Gateway SX2370-UR30P Desktop Computer

Tip

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

Batteries non reconnues


google translated
Battery not recognized
make sure the battery has a secure dust free seating and has charge

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
(some motherboards cmos batteries are soldered in)

hope this helps

Oct 08, 2012 | E-Machines eMachines Desktop PC

2 Answers

"reset the bios password on a sony vaio all-in-one desktop"


Follow these steps to clear the password:
NOTE: These steps also clear CMOS.
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the real-time clock (RTC) battery
6. Wait approximately 30 minutes.
7. Replace the RTC battery and reassemble the computer.
8. Connect AC power to the computer. Do not reinsert any batteries at this time.
9. Turn on the computer.
All passwords and all CMOS settings have been cleared.

Aug 02, 2012 | PC Desktops

1 Answer

Lenovo desktop 3282 beeps twice then 5 times and goes no further


Follow these steps to clear the password:
NOTE: These steps also clear CMOS.
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the real-time clock (RTC) battery
6. Wait approximately 30 minutes.
7. Replace the RTC battery and reassemble the computer.
8. Connect AC power to the computer. Do not reinsert any batteries at this time.
9. Turn on the computer.
All passwords and all CMOS settings have been cleared.

Aug 01, 2012 | Lenovo PC Desktops

1 Answer

Start-up and shut down problems, When starting up it says, press f1 to continue, f2 to run set-up.... F1 works but I am getting tired of doing this. Now when the computer starts, it stops at...


Hi names Rui,


For your problem the computer may display a prompt to press F1/F2 or any other key to enter setup each time the computer boots as a reminder on how to enter CMOS. However, if the computer asks to press F1/F2 (or another key) to enter setup and does not continue, this may be caused by any of the below reasons.

  1. New hardware has been recently installed.
  2. Error or confliction with settings in CMOS.
  3. CMOS battery is bad or failing.
Solution:

New hardware has been recently installed

If new hardware has been recently installed into the computer, it is likely that you are receiving the prompt "Press F1 or F2 to enter setup" because CMOS needs to verify that the new detected hardware is properly being setup in CMOS. Enter CMOS setup and save the settings and exit. If you continue to get errors continue to the next step.


Error or confliction with settings in CMOS

If no new hardware has been added or you continue to get this prompt verify no error or conflictions exist in CMOS. Press the key to enter setup and verify that all settings are correct.

If your time and date are not set correctly, your battery is more than likely bad. Try setting the correct time and date, save the settings and then reboot. If after turning off the computer the time and date get reset again replace the battery.

If the time and date are correct and everything else appears to be correct try resetting the CMOS values to the defaults.


CMOS battery is bad or failing

If you continue to receive the prompt to enter setup each time the computer boots up and you have attempted to follow the above suggestions, your CMOS battery is bad. We recommended that the CMOS battery be replaced.


hope this will help you.

Jul 20, 2011 | Dell Dimension 2400 PC Desktop

1 Answer

Getting a CMOS checksum bad error when starting my Acer M5640 Desktop with Windows 7 Thanks Daniel


Solutions to CMOS Checksum Bad Error

The CMOS Checksum Bad Error can be fixed easily by following the listed steps carefully.

CMOS Battery may not be functioning properly

If you suspect that your CMOS battery is not functioning properly, you can easily change it. Before changing your battery, reboot your computer to make sure that the error still exists. If it does, go into your CMOS and write down all of the settings. If all the settings are lost, you can usually retrieve them from your computer manufacturer. Now locate the battery and remove it, you might need to consult your computer's manual or technical support to remove your battery (the battery a flat, shiny silver colored and coin-shaped). Take down the CMOS battery's information such as volt, size, etc. Once you have your new battery, you can replace it and reenter your CMOS settings. If your battery was the cause of the CMOS Checksum Bad Error, you should have solved the problem.

Your BIOS may have been updated

If your BIOS have been updated recently, your CMOS settings may have reset. Make sure that the values entered in the BIOS are correct or simply reset them to the default settings. If you believe that a virus has updated your BIOS settings, run a virus scan and make sure that the BIOS settings are back to the default.

The Computer may not have been shut down properly

Sometimes when running MS Windows, if you shut down your computer without first properly shutting down your operating system, it will corrupt the CMOS settings causing the CMOS Checksum Bad Error. You can easily avoid this error by making sure that you completely shut down your computer properly before turning off the main power. Usually this entails going into the Start Menu, clicking on Turn Off Computer/ Shut Down. If improper shutdown was the cause of the error, you may have solved the issue.



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Jan 21, 2011 | PC Desktops

1 Answer

Hi, my desktop pc problem is the CMOS clock. i already put the new battery on it. when i shut down my PC and open it for the next day, the CMOS clock turn back to zero count. i already save it after i...


Nothing happened to it. Try resetting the CMOS jumper
>turn computer off
>look for a 3-pin jumper that looks like this

ce7c51f.jpg
>take that plastic thing that connects two pins and turn computer back on
>allow the computer to load windows
>shut the computer down properly
>put the plastic back TO THE EXACT PINS where to took it off from
>turn computer back ON and set regional settings, time, region, etc...

Sep 15, 2010 | PC Desktops

2 Answers

I have windows 7. When I shut down and then restart later or the next day the clock shows the time of shut down and then run ok but I have to reset it or click on internet sync and that works. Then the...


If this is an older PC (3-5 years or more) then most likely the backup battery on the motherboard has become weak.
On many motherboards this is a coin cell, which can easily be replaced (on others it is soldered in, though), just have a look.

Mar 24, 2010 | PC Desktops

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