Another laptop (not this model) did odd things like that. The machine was years old and they had never put in a new CMOS/BIOS battery. The good and bad news was it was the battery.
The bad news was all content on the machine was lost since they had enabled protection features in the BIOS and all had to be reset!
The laptop system seems to fire up alright, but nothing appears on the screen, there is no sound (IE: audio) other than the HD and fan kicking in. The last two times it actually did come up it asked for my password, which has not been changed, but no longer works, and then asked me for a fingerprint read ID, but there is NO fingerprint reader! I am baffled completely.