HP Integrity rx7640 and HP 9000 rp7440 Servers Installation Guide

Table 4 PCI-X Paths Cell 1 (continued)

PathI/O ChassisPCI-X SlotCell

1/0/14/1141

1/0/6/1151

1/0/4/1161

1/0/2/1171

1/0/1/1181

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 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 see 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 5 (page 19) lists the PCI-X slot types supported on the server.

Table 5 PCI-X Slot Types

PCI Mode SupportedSupported CardsRopesMaximum Peak

Bandwidth

Maximum MHzSlot

I/O Partition

PCI or PCI-X Mode

3.3 V001533 MB/s13380

PCI or PCI-X Mode

3.3 V002/0031.06 GB/s1337

PCI-X Mode 23.3 V or 1.5 V004/0052.13 GB/s2666

PCI-X Mode 23.3 V or 1.5 V006/0072.13 GB/s2665

PCI-X Mode 23.3 V or 1.5 V014/0152.13 GB/s2664

Detailed Server Description 19