Ok, I have had several people PM me asking about old motherboard identification (and in fact I had to actually try to figure out an old board myself recently), so I did some searching and found a great place where you can get help and information.
http://www.motherboards.org/
You need to register to use their tools, but they do have some nice apps that will help you identify your motherboard and bios information.
They also have a great forum with lots of help.