The CPU daughter card is the master controller for the FACP system. It mounts into the right most slot of the CPU motherboard. The CPU daughter card contains a service port, a direct drive user interface port, and a port for a service modem.
To remove the CPU daughter card, remove power to the system, detach the two ribbon cables connected to the card and pull the card out of its slot. To install the new card, place it in the same slot from which the old one was removed and reconnect the proper cables.