Pci And Pci-X Card Configuration Guidelines; Figure 4-6 Numbering Of Ix-Brick Pci-X Slots - Silicon Graphics Origin 3900 User Manual

4: IX-brick
PCI and PCI-X Card Configuration Guidelines
74
The PCI-X slots are numbered bus 1 through bus 6. Each bus has two slots, labeled 1 and
2, as shown in Figure 4-6. Separate buses enable the IX-brick to run cards of different
frequencies at the same time. For example, bus 1 can have one 133-MHz card, bus 2 can
have two 66-MHz cards, bus 3 can have two 33-MHz cards, and so on. Each PCI-X bus
supports 32-bit and 64-bit PCI or PCI-X cards at the same time.
For maximum bandwidth, PCI cards are distributed across all six buses when they are
integrated at the factory.
This section contains the following information:
• "Important Installation Considerations" on page 75
• "Supported PCI Cards" on page 75
• "PCI Card Carrier" on page 76
Bus 1 Bus 2
Slot Slot
1 2 1 2
48VDC
12VDC
Figure 4-6 Numbering of IX-brick PCI-X Slots
Bus 3 Bus 4
Slot Slot
1 2 1 2
XIO 10
Bus 5 Bus 6
Slot Slot
1 2 1 2
XIO 11
007-4653-001