Apparently this is a MLX8440 mobo, according to the research I have done (using the bios code i440lx-2a69jfdac-00). It is dated 12/15/97.
The manufacturer's web page doesn't exist anymore, and I have been unable to find a newer BIOS.
If anyone has the right BIOS for this mobo, along with the proper flash tool, I would appreciate it immensely.