Compared to its predecessor, the R520 supports more PCIe slots, PCIe 3.0, more memory, andadvanced systems management. Table 2 compares some of the features of the R520 to its R510predecessor. Table 3 lists all of the R520’s specifications.The R520 is the new generation PowerEdge server replacing the R510. Table 2 compares some ofthe R520 features to the R510 features.Feature PowerEdge R510 PowerEdge R520Chassis 2U rack 2U rackProcessors Intel Xeon processors 5500 and 5600seriesIntel Xeon processor E5-2400 productfamilyInternal interconnect Intel QuickPath Interconnect Intel QuickPath InterconnectMemory1 8 x DDR3 RDIMM and UDIMMUp to 128GB12 x DDR3 RDIMM and UDIMMUp to 192GBHard drive bays(hot-plug) Up to 12 x 3.5” or 2.5” SAS/SATA SSD Up to 8 x 3.5” or 2.5” SAS/SATA SSDRAID controller PERC H200, H700, H800 PERC H310, H710, H710P, H810PCI slots 3 PCIe 2.0 slots 4 PCIe 3.0 slots (with two processors)Embedded NIC 1 x 1GbE Dual Port LOM 1 x 1GbE Dual Port LOMPower suppliesNon-redundant 480W ACHot-plug, redundant andnon-redundant 750W ACCabled 550W ACHot-plug, redundant 495W AC, 750W AC,1100W AC, 1100W DCSystems managementDell OpenManageDell Management ConsoleLifecycle Controller 1.xDell OpenManage EssentialsDell Management ConsoleOpenManage Power Center (requiresiDRAC7 Enterprise with LifecycleController 2.x)Remote managementBaseboard Management ControlleriDRAC6 (Express or Enterprise) withLifecycle Controller 1.xBasic management upgradeable toiDRAC7 (Express or Enterprise) withLifecycle Controller 2.xPower efficiency Gold PlatinumAvailabilityHot-plug drivesHot-plug redundant cooling on 12-harddrive configurationHot-plug redundant power supply unitsHot-plug drivesFan fault toleranceHot-plug redundant power supply unitsInternal dual SD module1GB means 1 billion bytes and TB equals 1 trillion bytes; actual capacity varies with preloaded material and operating environment and willbe less.