With the single-processor configuration, you can install a maximum of two PCIe cards into the server in slot 5 and slot 6. With the dual-processor configuration, you can install a maximum of six PCIe cards into the server. See Rear Panel Components (Service) and Component Locations (Motherboard, Memory, and PCIe Cards).
These are some guidelines to follow when configuring PCIe cards:
The Sun Storage 12 Gb SAS PCIe RAID HBA, Internal card must be installed in slot 6. This is a configuration requirement.
Any empty PCIe slot must be populated with a PCIe filler. Use only the PCIe filler panels provided with the server to maintain proper airflow and EMI conformance for empty slots.
To optimize performance, populate the PCIe cards starting with PCIe slot 1 and move in an ascending order up to PCIe slot 6.