I have been given an older 486 mother board that was made by Vantage.
The silk screen on the board says copyright 1991. It uses the AMI bios,
and has the OPTI chip set. Also silk screened on the board is
Vantage 486sc25/33. Is this a 486dx motherboard or a sx motherboard. I
have no manuals for this thing. I also have no battery for the
motherboard. Could someone tell me something about it?