CardPriority Card Type Slot Priority—PowerEdge R720 Slot Priority—PowerEdgeR720xd Max Allowed2–Processor 1–Processor 2–Processor 1–Processor R720 R720xd9 1 Gb NICs 5, 7, 4, 6 5, 7, 6 4, 6, 5 6, 5 4 3Low Profile,LP 2, 3, 1 Not Supported 2, 3, 1 Not Supported 3 310 Non-RAID 5, 7, 4, 6 5, 7, 6 4, 6, 5 6, 5 4 3Low Profile,LP 2, 3, 1 Not Supported 2, 3, 1 Not Supported 3 311 Dell ioDrive 5, 7, 4, 6 5, 7, 6 4, 6, 5 6, 5 4 3Removing An Expansion Card From The Expansion-Card Riser 2 Or 3CAUTION: 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.1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.2. Open the system.3. Disconnect any cables connected to the expansion card.4. Lift the expansion-card latch out of the slot.5. Grasp the expansion card by its edges, and remove it from the expansion-card connector.6. If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening andclose the expansion-card latch.NOTE: You must install a filler bracket over an empty expansion slot to maintain Federal CommunicationsCommission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid inproper cooling and airflow inside the system.7. Close the system.8. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.67