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Chapter 4
Removing and Replacing Components
Removing and Replacing Hot-Plug PCI-X Cards
74
PCI-X Slot Locations and Configurations
PCI-X slots are numbered from 1 through 8 in your HP server. Figure 4-25 shows the slot locations on the I/O
baseboard.
The following describes configuration requirements for slots 1 through 8 (see Table 4-8 for configuration
requirements):
• PCI 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-plug capable. Additional PCI-X expansion cards
may not 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
slot sharing a PCI-X bus is PCI-X 66 MHz. If a PCI-X 133 MHz card is placed in a slot sharing a bus, the
maximum capability the PCI-X 133 MHz card can run at is PCI-X 66 MHz. If different modes (PCI vs.
PCI-X) or slower speeds (33 MHz) are used, then the slot automatically downgrades to accept the change.
Shared slots have card compatibility restrictions. If one of the shared slots is occupied then 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 will be rejected. If the new card has a faster capability
than the current bus configuration, it will only run at the bus mode and frequency of the current bus
configuration (slower).
1. If you have a 66 MHz card in slot 3, and you hot-plug insert a 33 Mhz card into slot 4, then the
operation will not succeed. The new 33 MHz card will not initialize and the slot will power down
because you cannot change bus speed during hot-plug operations.
NOTE If the server is rebooted in the new configuration, then both cards re-initialize to run at
33 MHz. This is because the server firmware can only change the bus capability from
66 MHz down to 33 MHz.
2. If you have a 33 MHz card in slot 3, and you hot-plug insert a 66 Mhz card into slot 4, it will work but
the new card will run at 33 MHz. This also applies to slots 5 and 6, as they are shared (both use a
common bus).
3. If your unit is powered down and you insert a 33 MHz card into slot 4 (that shares a 66 MHz card in
slot 3), then both cards will run at 33 MHz when the unit is powered up. This also applies to slots 5
and 6, as they are shared (both use a common bus).
Web Interface Yes- pdweb command.
Read Interface Card OL*
Support for HP-UX Servers
and Workstations,
pdweb-Peripheral Device
tool Web Interface, at
http://docs.hp.com.
No No
Table 4-7 Hot-Plug Hardware and Software Interfaces and OS Availability
Hot-Plug PCI-X Interface HP-UX 11i v2
Windows Server
2003 Enterprise
Edition
Linux Red Hat
Enterprise
Advanced Server
4 Update 3