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Installing the System
Installing Additional Components
Chapter 3
101
PCI/PCI-X Slot Locations and Configurations
PCI/PCI-X slots are numbered from 1 through 8 in the server as shown in Figure 3-32.
Figure 3-32 Slot ID Numbering
The following describes configuration requirements for slots 1 through 8:
• 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-pluggable. Additional PCI/PCI-X expansion
cards must not be placed in slots 1 or 2.
• Slots 3 and 4 share a PCI bus, and slots 5 and 6 share a PCI 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.
PCI-X Bus 3
1 2 34 56 78
Core I/O
PCI-X
Public I/O
Hot-pluggable PCI-X
PCI-X Bus 1
PCI-X Bus 2
Amber Attention LEDs
PCI-X Bus 4
PCI-X Bus 5
PCI Slot ID Numbers
Amber Attention LEDs
Green Power LEDs