Probably correct, though I think I had a 486 board with an AGP slot? I didn’t have anything newer than that until the Core 2 Duo came out.
AGP came too late for the 486. It may have been VLB, a short-lived step between ISA and PCI (and then AGP).
AGP came too late for the 486. It may have been VLB, a short-lived step between ISA and PCI (and then AGP).