HP Integrity Server rx4640 manual PCI-X Slot Locations and Configurations

Removing and Replacing Components

Removing and Replacing Hot-Plug PCI-X Cards

Table 4-7	Hot-Plug Hardware and Software Interfaces and OS Availability
			Windows Server	Linux Red Hat
				Enterprise
Hot-Plug PCI-X Interface		HP-UX 11i v2	2003 Enterprise
				Advanced Server
			Edition
				4 Update 3
Web Interface		Yes- pdweb command.	No	No
		Read Interface Card OL*
		Support for HP-UX Servers
		and Workstations,
		pdweb-Peripheral Device
		tool Web Interface, at
		http://docs.hp.com.

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).

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