I have only the Manual and searched the databse.
Just having the board layout from the Manual, it seems to fit this one: http://www.win3x.org/uh19/motherboard/show/6763
Looks like one of those ugly NoName boards, that nobody knows who really made it.
Even the naming in the manual is totally confused.
On the front cover it's called 'MINI-AT286 G2' , in the table of contents 'GH-286 G2 II' and further in the manual only 'GH-286'.
Manual Link: http://www.filedropper.com/gh286g2iiusersmanual
