AOpen DX6G Plus Manual page 21

1.8.3 Installing AGP Card
When installing an AGP card, make sure that the IRQ required by the
card is not already assigned to a PCI or ISA device to avoid resource
conflicts.
Follow these steps when installing an AGP card:
1. Locate the AGP slot on the mainboard.
2. Insert an AGP card into the slot. Make sure that the card is
properly seated.
When you turn on the system, BIOS automatically detects and
assigns resources to the AGP device.
BIOS detects and configures only PnP cards.
System Board 1-21