At the time of booting the date, time and booting priority is changing automatically. The date and time is becoming very old date and time. Each and every time I have to change it from BIOS set-up. After changing I am saving it pressing F10. But it is not working. What is the problem? What is its solution?
It is due to the battery problem that is present inside a CPU.
Replace the battery this would solve the problem.
Then topic of the thread is not related to your problem.
Thanks for comments. I will replace the battery.
Battery replaced and problem is gone. Thanks
I have replaced the battery in end of May. But after 3 months the problem again come. What to do?
this is very strange.
there are only 2 reasons why the cmos can get reset and that is by:
1. a loss of power, and this power is provided by the little battery.
2. closing the circuit on the RTC/CMOS reset jumper, which needs to be done by hand
you may have an issue with your motherboard here
[quote="Marcuzzo"]this is very strange.
how should I check that it is a motherboard problem? give me some tips
Your MB is probably old. It may or may not help but have you tried updating BIOS after replacing the CMOS battery? Anyway, you should get a new motherboard.
@sudipbanerjee whatever you do, don't start with flashing your BIOS or updating your CMOS or whatever unless you know what you are doing because you will brick your laptop.
as for testing. there are hardware testing CD's you can find on the internet that can diagnose your hardware.
I'd check on the website of the manufacturer.
sometimes they also provide bios and chipset updates you could try that aswell but be very carefull and make sure that you are using the correct one for your laptop/pc/whatever.