Pci And Pci-X Card Configuration Guidelines; Figure 5-5 Numbering Of Px-Brick Pci-X Slots - Silicon Graphics Origin 3900 User Manual

5: PX-brick
PCI and PCI-X Card Configuration Guidelines
86
The PCI and PCI-X card slots are numbered bus 1 through bus 6. Each bus has two slots,
labeled 1 and 2, as shown in Figure 5-5. Separate buses enable the PX-brick to run cards
of different frequencies at the same time. As a result, the same PX-brick can run 133-MHz,
100-MHz, 66-MHz, and 33-MHz cards at the same time.
Each PCI/PCI-X bus supports 32-bit and 64-bit PCI or PCI-X cards at the same time.
For maximum bandwidth, PCI/PCI-X 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 87
• "Supported PCI and PCI-X Cards" on page 87
• "PCI Card Carrier" on page 88
Bus 1 Bus 2
Slot Slot
1 2 1
48VDC
12VDC
Numbering of PX-brick PCI-X Slots
Figure 5-5
Bus 3 Bus 4
Slot Slot
2 1 2 1
XIO 10
Bus 5 Bus 6
Slot Slot
2 1 2 1
XIO 11
2
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