[Áedán]

I suspect it's really not worth trying to do. Unless the board is just missing the physical connector and has the wiring in place, it's going to be a nightmare to acheive.

Even if the chipset supports AGP, trace lengths and crosstalk are so critical that you might find it impossible to get them right in a reliable fashion. If you've ever wondered why some tracks on the motherboard do strange squiggles for no apparent reason, it's basically to ensure that all the signals arrive at the connector at the same time.

If you do want to continue on this plan, then you'll need to find out if the chipset supports AGP. If it does, you then need to identify the AGP pins on the chipset, and there are a fair few. You'd also need a power supply to generate and provide the correct voltages for the AGP interface.