ISA PCB Pattern Layout and Pin Assignment Critique

ISA bus has two parts of each slot, part AB of slot belong to XT configuration , and part DC with AB belongs to AT slots configuration , as

You want a mainboard shaped backplane that provides power to the isa slots? I think like Horun said removing the chipset that

isa slot adapter pinout is wrong Bumzy developed an ISA expans An update on this As the schematics on show, the J8 connector was reversed in my

isa slot This ISA card was my first real hardware project The ISA slot, for the uninititated, was the original proprietary slot on the IBM XT