Expansion Card Installation GuidelinesYour system supports PCI Express Generation 2 and Generation 3 expansion cards.NOTE: If you install a second processor, you must upgrade expansion card riser 1 to optimize PCIe slot 1 speed.The following table provides the riser configurations for single- and dual-processor systems:Table 3. Riser Configuration for Single- and Dual-Processor SystemsNumber of Processors Expansion Card ConnectorsRiser 1 Riser 2One PCIE_G2_X4iDRAC_Enterprise PCIE_G3_X16Two PCIE_G3_X16iDRAC_Enterprise PCIE_G3_X16NOTE: The expansion-card risers listed in the above table cannot be interchanged between single- and dual-processor systems.The following table provides a guide for installing expansion cards to ensure proper cooling and mechanical fit. Theexpansion cards with the highest priority must be installed first using the slot priority indicated. All other expansioncards must be installed in card priority and slot priority order.Table 4. Expansion-Card Installation PriorityCard Priority Card Type Height Slot Priority Max Allowed Per Slot1 RAID Standard HeightLow Profile2 or 1 12 Converged NetworkAdapters (CNAs)Standard HeightLow Profile2 or 1 13 10 Gb NICs Standard HeightLow Profile2 or 1 14 FC8 HBA Standard HeightLow Profile2 or 1 15 FC4 HBA Standard Height 2 or 1 16 1 Gb NICs Standard HeightLow Profile2 or 1 17 Non-RAID Standard HeightLow Profile2 or 1 1Removing An Expansion CardCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.63