First post, by Arandy
Greetngs!
Today I've got a JATON JAM-2301-v4 286 board. This board of mime, after checking traces and fixing +12v trace, still doesn't work. It starts booting but stops very early at 02 post code (seen via isa post card). I've checked the two NMS27c256Q rom bioses and backed up their content via TL866II. I've compared with the ones uploaded on "The Retro Web " website and found that they are more recent (year 1990 vs 1989). So I put them back in the board.
According to Phoenix post code table 02 post code means "verify real mode".
I really don't get what it means....doest it means that the CPU is faulty?
Do you have any ideas?
Thnak you