Pcie Root Complex Connections (Single-Processor Configurations) - Oracle SPARC T5-4 Service Manual

Understanding PCIe Root Complex Connections
"PCIe Root Complex Connections (Single-Processor Configurations)" on page 152
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"PCIe Root Complex Connections (Dual-Processor Configurations)" on page 153
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PCIe Root Complex Connections (Single-
Processor Configurations)
In single-processor configurations, the server configures the PCIe root complex paths to this
topology.
This diagram illustrates the root complex connections between the two CPUs in PM0 and 14
PCIe I/O slots.
Note -
CPUs 0 and 1 support four root complex fabrics, which connect to the 12 usable I/O slots
through switches 0 through 3.
152 SPARC T5-4 Server Service Manual • July 2016
I/O slots 15 and 16 cannot be used in single-processor configurations.