[m00nraker]

Originally Posted by Acideyez

before you remove the CMOS battery, you want to write down every single thing in the BIOS screens, as you will have to put it back in, manually. This means how many cylinders/tracks/sectors etc. each hard drive had.

I have never done that, and i have removed the CMOS many times. It just auto detects it, but if you had any changed that you made prior to the battery removal, you will have to set them again.