If this file is corrupted (due to a failed update) or blank, the laptop will show no signs of life—usually just a power light that turns on for a second and then off, or a black screen with fans spinning. The difficulty with the HannStar J MV-4 is that this board was used in several different laptop chassis. The ports and layout are generally the same, but different laptop models used this board with different BIOS versions . Orcad 10.5 License File - 3.79.94.248