Having problems with your IBM ThinkPad R40 2722 Notebook ?

I have a r40 ibm laptop problem is date & time error i replaced cmos battery update bios but still problem now


Answers :

Just reverse the negative and the positive on the bios battery have fun ...youre welcome. no ac adapter needed you can keep it on your laptop battery and not worry about the cmos battery dying
Assuming that you used the correct battery go ahead and unplug and replug the cmos batter back into its connector.

Go into the BIOS and set the date and time properly. Then unplug the battery and save the changes and exit.

See if the message comes back, if it doesn't then your good to go. If the message still comes back then the motheroard isn't keeping memeory at all.

Go ahead and shut off the machine for about 15 minutes. Then only plug the ac adapter up and hopefully the message stays away. If it does then that means the battery is good and your motherboard is good as well.

if you leave it off and then turn the laptop on and that error message comes back then you need to change out the motherboard.
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