HP Integrity rx8640, HP 9000 rp8440 Server User Service Guide

Table 6 PCI-X Slot Boot Paths Cell 1

PathRopesPCI SlotCell

1/0/8/1/08/911

1/0/10/1/010/1121

1/0/12/1/012/1331

1/0/14/1/014/1541

1/0/6/1/06/751

1/0/4/1/04/561

1/0/2/1/02/371

1/0/1/1/0181

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 (3) 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 (4) 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.

Each of the 16 slots is capable of 33 MHz/66 MHz PCI or 66 MHz/133 MHz PCI-X. Four slots

in PCI-X support 266 MHz. All 16 PCI slots are keyed for 3.3 V connectors (accepting both Universal

and 3.3 V cards). The PCI-X backplane does not provide any 5 V slots for the I/O cards. Table 7

summarizes the PCI-X slot types.

The PCI-X backplane is physically one board, yet it behaves like two independent partitions. SBA

0 and its associated LBAs and eight PCI-X slots form one I/O partition. SBA 1 and 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: 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 7 PCI-X Slot Types

PCI Mode SupportedSupported CardsRopesMaximum Peak

Bandwidth

Maximum MHzSlot

I/O Partition

PCI or PCI-X Mode

3.3 V001533 MB/s668

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

Detailed Server Description 21