HP Integrity rx8640 and HP 9000 rp8440 Servers Installation Guide

Table 6 PCI-X Slot Boot Paths Cell 1 (continued)
PathRopesPCI SlotCell
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
1
I/O Partition
PCI or PCI-X Mode
1
3.3 V001533 MB/s668
2
0
PCI or PCI-X Mode
1
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
PCI-X Mode 23.3 V or 1.5 V012/0132.13 GB/s2663
PCI or PCI-X Mode
1
3.3 V010/0111.06 GB/s1332
PCI or PCI-X Mode
1
3.3 V008/0091.06 GB/s1331
20 HP Integrity rx8640 Server Overview