My cmos battery failure please help?

[chuafbdesigns]

My cmos battery failure please help?i will give you a brief story what happen on my pc before errors occured..my cousin borrowed my pcwith good condition and even no single error.what he did on my pc is he remove my processor to try to fit on his weak computer..and he also reposition the side fan of the case to back area.after a week i got my pc with errors occured on my pc  booting

The following are warnings that are detected during this boot
These can be viewed in setup on Event Log Page.

WARNING: CMOS Battery Failure

WARNING:CMOS Checksum Error

WARNING:CMOS Time Not Set

I bought a new CR2032 3v Lithium battery and i replace the old batter to the newone and changing date and time

on the bios setup but still after i turn off my pc and want to use it errors still occoured :-(

Please help me and sorry for my english..

[Geek-9pm]

Please include the model number of your computer.
Test the CMOS cell with a voltmeter.
Make sure the battery is in the right position.
Check and see if the jumpers are in the right place. See your user manual.