Windows XP - time and date keep resetting.

  Daibus 11:15 28 Aug 2008
Locked

My laptop running Windows XP, keeps loading with the wrong time and date.

Upon booting up I will get a message indicating the problem.

0251- Check time and date setting
0271-System CMOS Checksum bad-Default configuration used.

Help much appreciated.

  Eric10 11:19 28 Aug 2008

If the laptop is a few years old then this would indicate a flat motherboard battery. Changing this battery on a laptop is not the simple matter that it is on a desktop PC but if you post the make and model of your laptop then someone on here may have had experience of it.

  sinbads 11:20 28 Aug 2008

click here battery needs replacing

  I am Spartacus 11:23 28 Aug 2008

Is it a Toshiba?

My wife had both those error messages recently. She'd let the battery run down completely. She pressed F1 to continue then after system had loaded reset the date and time in Control Panel and rebooted and it disappeared.

  Sea Urchin 11:44 28 Aug 2008

Your link is for PC - not a laptop

  Daibus 11:48 28 Aug 2008

Many thanks for your replies.

My laptop a HP dv2031 (dv2000 series) and is just two years old.

Replacing the battery on a laptop looks a bit tortuous and I understand that the bios settings will be lost when the old battery is removed. If I therefore back up the PC using Acronis would this restore everything including the bios settings, which would make it easier in case of any mistakes?

Cheers again.

  €dstowe 11:54 28 Aug 2008

If the battery has expired the BIOS settings will be at the default settings anyway so there's nothing to lose.

  Daibus 11:56 28 Aug 2008

Just another point.

When I go into Contol Panel to try and reset the time and date it will not reset.

An error is indicated but after about an hour or so the date suddenly resets itself.

Could this indicate it is not a battery fault maybe?

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