HP Integrity rx7640 - Table 1-4. PCI-X Paths Cell 1

Chapter 1
HP Integrity rx7640 Server and HP 9000 rp7440 Server Overview
Detailed Server Description
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The server supports two internal SBAs. Each SBA provides the control and interfaces for eight PCI-X slots.
The interface is through the rope bus (16 ropes per SBA). For each SBA, the ropes are divided in the following
manner:
• A single rope is routed to support the core I/O boards through LBAs located on the system backplane.
• A single rope is routed to an LBA on the PCI backplane to support a slot for PCI and PCI-X cards (slot 8).
• Six ropes are bundled into double ropes to three LBAs. They support slots 1, 2, and 7 for PCI and PCI-X
mode 1 cards.
• Eight fat ropes are bundled into quad ropes to four LBAs. They support slots 3, 4, 5, and 6 for PCI and
PCI-X mode 2 cards.
NOTE PCI-X slots 1-7 are dual rope slots while slot 8 is a single rope slot. A rope is defined as a high
speed point to point data bus.
The PCI-X backplane is the primary I/O interface for the server. It provides 16, 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. Four slots in PCI-X support 266 MHz. All sixteen PCI slots are keyed for 3.3 volt connectors
(accepting both Universal and 3.3 V cards). See Table 1-5 for more details.
The PCI-X backplane is physically one board, but it behaves like two independent partitions. SBA 0, its
associated LBAs, and eight PCI-X slots form one I/O partition. SBA 1, its associated LBAs, and eight PCI-X
slots form the other I/O partition. One I/O partition can be reset separately from the other I/O partition, but
cannot be powered down independently.
IMPORTANT Always refer to the PCI card’s manufacturer for the specific PCI card performance
specifications. PCI, PCI-X mode 1, and PCI-X mode 2 cards are supported at different clock
speeds. Select the appropriate PCI-X I/O slot for best performance.
Table 1-5 lists the PCI-X slot types supported on the server.
Table 1-4 PCI-X Paths Cell 1
Cell PCI-X Slot I/O Chassis Path
1 1 1 1/0/8/1
1 2 1 1/0/10/1
1 3 1 1/0/12/1
1 4 1 1/0/14/1
1 5 1 1/0/6/1
1 6 1 1/0/4/1
1 7 1 1/0/2/1
1 8 1 1/0/1/1