HP Server rp7420 HP 9000 rp7420 Server - User Service Guide, Fifth Edition - Page 20
PCI-X Board to Cell Board Block Diagram, Table 1-1 PCI-X Slot Types
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Figure 1-4 PCI-X Board to Cell Board Block Diagram NOTE: PCI-X slots 1 through 7 are dual rope slots, while slot 8 is a single rope slot. The PCI-X backplane is the primary I/O interface for HP 9000 rp7420 servers. It provides sixteen 64-bit, hot-plug PCI/PCI-X slots. Fourteen of the slots have dual ropes connected to the LBA chips. The remaining two slots have a single rope connected to each LBA chip. Each of the sixteen slots are capable of 66 MHz/33 MHz PCI or 133 MHz/66 MHz PCI-X. All sixteen PCI slots are keyed for 3.3-volt connectors (accepting both Universal and 3.3-V cards). The PCI-X backplane does not provide any 5-volt slots for the I/O cards. For more details, see Table 1-1. The PCI-X backplane is physically one board but behaves like two independent partitions. SBA 0 and its associated LBAs and eight PCI-X slots form one I/0 partition. SBA 1 and its associated LBAs and eight PCI-X slots form the other I/0 partition. One I/O partition can be powered down separate from the other I/O partition. Table 1-1 PCI-X Slot Types I/O Partition Slot Device1 0 8 PCI (33 or 66 MHz) / PCI-X (66 or 133 MHz) 64-bit, 3.3V connector, hot plug slot 0 7 PCI (33 or 66 MHz) / PCI-X (66 or 133 MHz) 64-bit, 3.3V connector, hot plug slot 0 6 PCI (33 or 66 MHz) / PCI-X (66 or 133 MHz) 64-bit, 3.3V connector, hot plug slot 0 5 PCI (33 or 66 MHz) / PCI-X (66 or 133 MHz) 64-bit, 3.3V connector, hot plug slot 20 Overview