Description Both the CIPCA-AA and CIPCA-BA are designed as two board options. The CIPCA-AA requires one PCI backplane slot and one EISA backplane slot. The CIPCA-BA requires two PCI slots. The CIPCA-BA is intended for newer servers that have a limited number of EISA slots. Older systems that have a limited number of PCI slots should generally continue to utilize the CIPCA-AA.The maximum number of CIPCAS that can be configured within a system is dependent upon the system, the available number of EISA and PCI slots, the combination of model(s) of CIPCA selected, as well as other system options.