An fun rebuild project would be to find one of those old athlon XP era Soyo boards with the voice output on the bios. Instead of beeping codes or flashing lights they had pre recorded error messages that played if you had any problems with the board. Scared the crap out of me the first time i fired one up with it on there and heard a little voice coming from inside the box out of the pc speaker.
Very scifi-esque.
Very scifi-esque.