User Service Guide, Fifth Edition - HP Integrity rx8640 SEU

slots are keyed for 3.3V connectors (accepting both Universal and 3.3V cards). The PCI-X backplane

does not provide any 5V slots for the I/O cards.

The external link for the SEU attaches the cell controller on cell board 2 to SBA 0 and attaches

the cell controller on cell board 3 to SBA 1 of the PCI-X board in the SEU cabinet.

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/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 powered down

separate from the other I/O partition.

Table 1-7 PCI-X Slot Types

PCI Mode SupportedSupported CardsRopesMaximum Speed

MHz

Slot

I/O Partition

PCI or PCI-X Mode 13.3 V001668

PCI or PCI-X Mode 13.3 V002/0031337

PCI-X Mode 23.3 V or 1.5 V004/0052666

PCI-X Mode 23.3 V or 1.5 V006/0072665

PCI-X Mode 23.3 V or 1.5 V014/0152664

PCI-X Mode 23.3 V or 1.5 V012/0132663

PCI or PCI-X Mode 13.3 V010/0111332

PCI or PCI-X Mode 13.3 V008/0091331

PCI or PCI-X Mode 13.3 V001668

PCI or PCI-X Mode 13.3 V002/0031337

PCI-X Mode 23.3 V or 1.5 V004/0052666

PCI-X Mode 23.3 V or 1.5 V006/0072665

PCI-X Mode 23.3 V or 1.5 V014/0152664

PCI-X Mode 23.3 V or 1.5 V012/0132663

PCI or PCI-X Mode 13.3 V010/0111332

PCI or PCI-X Mode 13.3 V008/0091331

1 Each slot will auto select the proper speed for the card installed up to the maximum speed for the slot. Placing high

speed cards into slow speed slots will cause the card to be driven at the slow speed.

2 Slot is driven by a single rope and has a maximum speed of 66 MHz.

PCI-X/PCIe I/O Backplane

The differences between the PCI-X/PCIe I/O backplane and the PCI-X backplane are as follows:

• Twelve ropes are bundled in two rope pairs to 6 LBAs to support 6 slots for PCI and PCI-X

cards instead of 14. These ropes are capable of 133 MHz.

• Sixteen ropes are bundled into dual fat ropes to 8 LBAs to support 8 additional slots for

PCIe cards. These ropes are capable of 266 MHz.

The PCI-X/PCIe I/O backplane is the primary I/O interface for SEU systems. It provides 8 64-bit,

hot plug PCI/PCI-X slots. Six of the slots have dual ropes connected to the LBA chips and are

capable of 133 MHz. The remaining two slots have a single rope connected to each LBA chip and

are capable of 66 MHz. The PCI-X/PCIe I/O backplane also provides eight 8x, hot plug PCI-e

slots. All of the PCIe slots are driven by dual ropes and are all capable of 266 MHz. The PCI-Xe

also provides eight 8x, hot plug PCI-e slots. All of the PCI-e slots are driven by dual ropes and

are all capable of 266 MHz. All 16 slots are keyed for 3.3v connectors (accepting both Universal

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

Detailed SEU Description 23