https://forums.tomshardware.com/threads/cmos-battery-for-toshiba-l330d-laptop-if-dead-will-it-cause-it-not-to-boot-up.405492/
Cmos battery for toshiba l330d laptop if dead will it cause it not to boot up | Tom's Hardware Forum
Hello,i have a toshiba l300d laptop running win 7 ultimate when i boot it up ac led is lite up batt led is lite up and dvd rom led permantley lite up screen...