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Cmos battery bad real time clock error

Cmos battery bad real time clock error

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Is time to replace the battery. Is gone.

Posted on May 05, 2010

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Posted on Jan 02, 2017

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Lock ibm bios 0271 error


You need a replacement battery for the CMOS system on your computer.

The CMOS system contains the BIOS settings configuration and also runs the real time clock. If the real time clock does not stay in sync, this can have a negative affect on your installed operating system ( for example, a windows computer will not allow ANY system updates if the difference between your system time date, and the update servers current time and date is offset for 24 hrs. or more)

Oct 29, 2013 | Lenovo ThinkPad T410 Notebook

1 Answer

Every time i boot up my brand new dell vostro i get an error: 00c08270 real time clock error - check time and date settings. I have been continuously updating the time and date but the error message keeps...


Meaning the RTC battery needs to be replaced.

The Real Time Clock battery is the CMOS battery.

http://support.dell.com/support/edocs/systems/vosA860/en/sm/index.htm

Coin-Cell Battery

The laptop has to be completely disassembled down to the motherboard (System Board) in your hand.
On the bottom of the motherboard is the RTC Battery.

Since the laptop is brand new this falls on the place where you purchased it, or Dell.
It is still under warranty as far as replacing the RTC Battery. (It came with a bad battery. They need to replace it, not you)

Regards,
joecoolvette

Jul 09, 2011 | Dell Vostro A860 Notebook

1 Answer

Well i have a few problems the first is it Says that there is a disk drive 0: Fujistu MHF2043AT error, and Real time Clock error,and it can not find save to disk file, and can not boot at all. I have...


One thing at a time.
The real time clock is kept on time by a CMOS battery and if the battery goes flat, the time will be lost as will the CMOS data that tells the notebook that there is a hard drive installed.
Replace the CMOS battery first, set the time and date in the BIOS then let the BIOS detect the hard drive.
When the BIOS bit is happy, place a system disk in the DVD Drive and load a fresh OS.
Hope that helps, and have a nice Xmas.

Dec 23, 2010 | Compaq Presario 1255 Notebook

1 Answer

Is there a patch to fix the clock error? my vostro does not keep time when shut down


Date & Time are kept by RTC (Real Time Clock) CMOS Battery, which is usually a coin-cell battery on the motherboad.
As the RTC of your system is dead, it can not keep time.
Therefore, RTC (CMOS Battery) is required to be replaced with a new one to fix the issue.
Refer here for more information/ disassembly guide.

Let me know if any further clarification is required. Hope this helps! Dont forget to rate the solution!!
CreativeTECH

Nov 29, 2010 | Dell Vostro A860 Notebook

1 Answer

How do I do to find and replace the battery with a new one? Problem: CMOS battery bad. Real Time Clock Error. Best wishes Bengt Olson Sweden bengt.olson@telia.com


The CMOS battery will be beneath the keyboard and is usually a button cell, (2032 or 2025 size) 3 volts. Just north of the touch pad possition.

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Oct 22, 2010 | Acer TravelMate 512DX Notebook

1 Answer

I'm receiving 071. CMOS Battery bad and 070. Real Time Clock Error on my IBM Thinkpad iseries laptop. Where can I get these batteries from?


Probably you can get these kind of batteries either through online or nearest store like Walmart, Bestbuy or Radioshack...

Jan 22, 2010 | IBM ThinkPad i Series 1400 Notebook

2 Answers

I get the message "Bad check sum (CMOS)" Model toshiba tecra 730XCDT


hi friend,

Probably a dead Motherboard battery. Need to enter the BIOS screens and reset values. Especially the time and date. Maybe the boot order and if using USB KBoard enable legusy USB devices. This will occur each time your friend shuts down and reboots until the battery is changed.
Issue
When you turn your Toshiba computer on, you see an error message like: **** Bad RTC battery ****
**** Bad Checksum (CMOS) ****
Check system, then press [F1] key The Real Time Clock (RTC) battery provides power for the internal clock/calendar and for maintaining system configuration settings.
This error can occur when a machine has been left turned-off for an extended period of time (around a month), and is the result of a depleted RTC battery. Other symptoms include not being able to execute Windows Update properly, errors/problems executing application software (like Norton Antivirus), and the appearance of the Windows XP "Desktop Clean Wizard".
Resolution This condition is easy to fix in 3 basic steps: Reset the BIOS defaults
Set the correct date and time in Windows.
Charge the RTC battery Please follow the detailed instructions in the next section.
Procedure Set BIOS defaults Press the [F1] key as instructed in the error message:
**** Bad RTC battery ****
**** Bad Checksum (CMOS) ****
Check system, then press [F1] key In the BIOS setup screen press the [Home] key to restore the default values, then press the [End] key to save and exit, then the [Y] key to confirm and restart the system. Set the correct date and time in Windows As Windows starts-up, you may see an error message about an "Invalid System Time". Go ahead and click "OK" to clear the error dialog. Open the Windows Control Panel and open the "Date and Time" control by double-clicking its icon. Set the correct date and time, then click OK to save. Charge the Real Time Clock (RTC) battery To charge the RTC battery, connect the AC adapter and turn the computer on (both the DC IN and Power LEDs must be green). Leave the machine on for approximately 24 hours to ensure a full charge in the RTC battery. Please note that the RTC battery does not charge while the PC is turned off, regardless of whether the AC adapter is connected or not. Other Information: If, on subsequent reboots, the "Bad RTC Battery" error persists, it's quite likely that you actually do have a bad RTC battery. If that's the case, you should contact a Toshiba Authorized Service Provider to have the system serviced. Windows XP Desktop Cleanup Wizard The first time you reboot Windows XP after resetting the system clock, Windows XP may try to run the "Desktop Cleanup Wizard". Simply Cancel the "Desktop Cleanup Wizard" at the first dialog. If you do manage to clean your shortcuts from the desktop and want to recover them, you will find them in a folder called "Unused Desktop Shortcuts". You can recover them as follows: Double-click to open the "Unused Desktop Shortcuts" folder
Click to expand the "Edit" menu, and click "Select All"
Drag the selected items back to your desktop
Close the "Unused Desktop Shortcuts" folder. You can delete this folder if it is empty.

thank u for using fixya

regards,
sivaranjini

Aug 10, 2009 | Toshiba Tecra 730CDT Notebook

3 Answers

Turn on computer and message reads ****bad check sum (CMOS) ****


That means that after computer had been off for a long time the CMOS battery has drained, and CMOS (BIOS) settings had been reset to default.

Usually the computer will work fine after pressing F1, but you may get wrong date and time.

Try charging battery completely, often the problem disappears, if it does not , then the choice is between pressing F1 each time you start the laptop, or disassembling the laptop and replacing CMOS internal coin battery, located on the lower side of the motherboard.

May 17, 2009 | Toshiba Satellite 1805-S204 Notebook

2 Answers

I have a Dell dimension 9150 which is 2 1/2 years old. Does it have a battery that I need to be concerned about replacing. I remember that used to be a problem with computers but don't know if that is...


Hi,
Every PC motherboard has a battery. That battery serves two purposes: to feed the configuration memory (also called CMOS) and to feed the real time clock of the computer (the one that show the date and the time).
An indication it is time to change the motherboard battery is receiving one of the following error messages when you turn on your computer: CMOS CHECKSUM FAILURE, CMOS BATTERY STATE LOW, CMOS SYSTEM OPTIONS NOT SET and CMOS TIME AND DATE NOT SET. Another indicator of a low battery is a clock that, after being set, runs well while the computer is on, but shows the wrong time when the computer is turned on the following day (it is late).

Apr 21, 2009 | Dell (2336V) Motherboard

4 Answers

CMOS battery replacement


Your Pc should have an Intel E210882 motherboard in it.
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer
is not plugged into a wall socket, the battery has an estimated life of three years. When the
computer is plugged in, the standby current from the power supply extends the life of the battery.
The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.
When the voltage drops below a certain level, the BIOS Setup program settings stored in CMOS
RAM (for example, the date and time) might not be accurate. Replace the battery with an
equivalent one. Figure 14 shows the location of the battery.
These batteries are very common and can be purchased at Wal-Mart, Walgreens, Etc...
Here is a link to the motherboard manual with battery replacement procedures:
http://www.asi.com.au/support/Drivers/V206/Manual/SR_English.pdf

Jan 04, 2008 | Computers & Internet

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