Question about IBM ThinkPad R40 2722 Notebook
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.
Posted on Jul 17, 2009
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Posted on Jan 02, 2017
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