i have Dell Inspiron 1545. in my laptop i used BIOS admin Password to lock my system (prevent unknown booting or i can't boot any cd or usb without BIOS system password), i used it since 2 month.
yesterday when i open my laptop and enter my system password it shows "invalid password" , i try approx 30-40 times.
after trying lot's of possibilities, i speak to laptop service center and he say me to sorry u have to change your "mother board" and no any other solution.
help...