Dell PowerEdge R920 Dell PowerEdge R920 System Owners Manual - Page 64

Expansion Cards And Expansion-Card Risers NOTE: A missing or an unsupported expansion-card riser logs an SEL event. It does not prevent your system from powering on and no BIOS POST message or F1/F2 pause is displayed. Expansion Card Installation Guidelines Your system supports third Generation 10 PCIe expansion card slots that include one dedicated slot for PERC 9 storage card and one dedicated riser-slot for Network Daughter Card (NDC). Slot 1 connector functions as an x8 connector and can be extended as two x4 slots when the left I/O riser is installed. Slot 9 connector functions as an x16 connector and can be extended as two x8 slots when the right I/O riser is installed. NOTE: Left and right optional risers supports Generation 2 expansion cards. Generation 3 expansion cards will be supported in future. Table 3. Supported Expansion Cards Riser PCIe Slot Processor Connection Height Length Link Width Slot Width 1 Processor 1 Full Height Half Length x8 x24 1 (NDC riser) 2 Processor 1 Full Height Half Length x8 x16 - reversed 2 (optional) 1/1 Full Height Full Length x4 x8 NOTE: If installed as a left I/O riser 2/2 Full Height Half Length x4 x8 3 Processor 1 Full Height Half Length x8 x16 4 Processor 2 Full Height Half Length x16 x16 5 Processor 2 Full Height Half Length x16 x16 6 Processor 3 Full Height Half Length x16 x16 7 Processor 3 Full Height Half Length x16 x16 8 Processor 4 Full Height Half Length x16 x16 9 Processor 4 Full Height Half Length x16 x24 3 (optional) 1/9 Full Height Full Length x8 x16 NOTE: If installed as a right I/O riser 2/10 Full Height Half Length x8 x16 NOTE: The expansion cards are not hot-swappable. Ensure the AC power supply is completely removed before installing the expansion cards. 64