I have Toshiba Qosmio F750 Laptop. The costomer says that "one day when I start it there comes with a bios password on startup screen". I reprogrammed bios and EC chips (25Q32BV, 25X40BV) but nothing changed. There is password on startup again. After some googling and searching forum, The I/O chip is Nuvoton NPCE771QA0DX but I find SMSC MEC1609 on its mainboard. I think the password is on the MEC1609. But I dont know how to program MEC1609 and how can I find its dump file. Please help me...