Where exactly does the ISA bus begin in a computer?

486 AST motherboard UP8810A riser card PCI pinout found isa slot pinout Figure 3 describes the pinouts for the full 16-bit ISA expansion slot, and Figure 4 shows how the additional pins are oriented in the expansion slot isa slot Try to ensure that the wiring at the connector that gets into the ISA slot is checked every part of the device(every IC,all those jumper wires

isa expansion 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