G'day,
I am trying to repair an old 286 MB, made by Quansan. I have got it to initialise BIOS and my post card gets to 100C, which i believe is Check first 64k of memory. The board has 2 jumpers j22 and j23 for memory selection, which i have no documentation on. I have tried SIPP and DRAM, no go..

If anyone recognise this configuration or similar jumper setup, could you pls give me the details.

I have attached some photos.

Thanks
Paul