486 AST motherboard UP8810A riser card PCI pinout found

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

The ISA card-edge connector is used to connect peripheral cards to the motherboard of PC compatible computers The ISA Connector is actually two card-edge

isa slot computer ISA Connector Pinouts ; B6 DRQ2 ; B7 -12V ; B8 SRDY_L ; B9 +12V

isa slot full form pinout is proprietary to the motherboard vendor as well as POST cards The ISA-style bus cycles that were inherited by LPC from ISA are one-byte