How to replace a laptop cmos battery, brought to you by ... If the cmos battery is flat the laptop will keep loosing it's date and may also have a check sum error appearing when booting up. On some laptops you have to
by GSV
by Tapendra Mandal
by collintheapplegeek
by Scrapheap Workshop
by RandomDIYProjects
by Doityourself Gadgets
by Creative Useful