HP 9000 rp4410-4 User Service Guide, Fifth Edition - HP 9000 rp4410/4440 - Page 183

Slot ID Numbering, hot-pluggable. Additional PCI/PCI-X

Page 183 highlights

Figure 6-26 Slot ID Numbering The following describes configuration requirements for slots 1 through 8: • PCI-X slots 1 and 2 are dedicated for use by the core I/O cards: SCSI HBA card in slot 1 and Gigabit Ethernet LAN card in slot 2. Slots 1 and 2 are not hot-pluggable. Additional PCI/PCI-X expansion cards cannot be placed in slots 1 or 2. • Slots 3 and 4 share a PCI-X bus, and slots 5 and 6 share a PCI-X bus. The maximum capability of each of the shared slots is PCI/PCI-X 66 MHz. If a PCI/PCI-X 133 MHz card is placed in a shared slot, the PCI/PCI-X 133 MHz card runs at a maximum of 66 MHz. If different modes (PCI versus PCI-X) or slower speeds (33 MHz) are used, the slot automatically downgrades to accept the change. Shared slots have card compatibility restrictions. If one of the shared slots is occupied, the card being added to the second slot is limited by the configuration of the occupied slot. If the new card has a slower capability than the current bus configuration, it cannot work. If the new card has a faster capability than the current bus configuration, it runs at the bus mode and frequency of the current bus configuration. • Slots 7 and 8 are single slots. The maximum capability of each slot is PCI-X 133 MHz. Only slots 7 and 8 enable 133 MHz, PCI-X cards to run at full speed. These two slots are not limited by bus-mode or frequency-related incompatibilities. Table 6-4 lists the PCI/PCI-X cards vs. slot frequency/bus mode compatibility for shared slots. Removing and Replacing PCI/PCI-X Cards 183

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Figure 6-26 Slot ID Numbering
The following describes configuration requirements for slots 1 through 8:
PCI-X slots 1 and 2 are dedicated for use by the core I/O cards: SCSI HBA card in slot 1 and
Gigabit Ethernet LAN card in slot 2. Slots 1 and 2 are
not
hot-pluggable. Additional PCI/PCI-X
expansion cards cannot be placed in slots 1 or 2.
Slots 3 and 4 share a PCI-X bus, and slots 5 and 6 share a PCI-X bus. The maximum capability
of each of the shared slots is PCI/PCI-X 66 MHz. If a PCI/PCI-X 133 MHz card is placed in
a shared slot, the PCI/PCI-X 133 MHz card runs at a maximum of 66 MHz. If different modes
(PCI versus PCI-X) or slower speeds (33 MHz) are used, the slot automatically downgrades
to accept the change.
Shared slots have card compatibility restrictions. If one of the shared slots is occupied, the
card being added to the second slot is limited by the configuration of the occupied slot. If
the new card has a slower capability than the current bus configuration, it cannot work. If
the new card has a faster capability than the current bus configuration, it runs at the bus
mode and frequency of the current bus configuration.
Slots 7 and 8 are single slots. The maximum capability of each slot is PCI-X 133 MHz. Only
slots 7 and 8 enable 133 MHz, PCI-X cards to run at full speed. These two slots are not limited
by bus-mode or frequency-related incompatibilities.
Table 6-4
lists the PCI/PCI-X cards vs. slot frequency/bus mode compatibility for shared slots.
Removing and Replacing PCI/PCI-X Cards
183