The Xserve computer has dual expansion slots using the industry-standard peripheral component interconnect (PCI) bus. These slots support full-size PCI cards in either 64-bit/66-MHz or 32-bit/33-MHz configurations.
The PCI-only dual expansion slots accept 33-MHz or 66-MHz PCI cards with either 32-bit or 64-bit address and data buses. The PCI cards use power at +3.3 V. The slots accept standard 6.88-inch and 12.283-inch PCI cards as defined by the PCI Local Bus Specification, Revision 2.1. The cards are required to use the standard ISA fence described in the specification.
The slot load Xserve computer also has a combination AGP/PCI slot. The combination slot accepts half-size PCI 2.1 compatible 32-bit/66-MHz cards on a PCI riser card. The AGP/PCI riser card supports a 66 MHz-only 32-bit PCI 2.1 compatible card. The AGP/AGP riser card that is included if the AGP configuration is purchased supports a 4X AGP compatible card. These cards must follow the Universal Card Slot design. The AGP/PCI slot does not provide any ADC power.
The computer’s case has openings in the back for access to I/O connectors on the PCI cards. The cards are secured in place by thumb screws accessible from the back of the computer.
The expansion slots support all the required PCI signals and certain optional PCI signals. The PCI slots support the optional 64-bit data bus extension signals.
The maximum total power available for all PCI slots and the combination card slot is 50 watts. The card in the combination slot can account for up to 15 watts of that total.
ImportantThe user should first shut down the computer before removing or installing PCI expansion cards. Make sure the power light on the front is off. The Xserve computer does not support PCI hot-plugging functionality.