Processor KIT for HP Z820 Workstation. Includes- Intel Xeon E5-2643 3.3 MHz Processor- Genuine Heatsink HP P/N 635868-001 Spares P/N 636164-001- Genuine Fan HP ASSY P/N 647113-001# of Cores4# of Threads8Processor Base Frequency3.3 GHzMax Turbo Frequency3.5 GHzCache10 MB SmartCacheBus Speed8 GT/s QPI# of QPI Links2TDP130 WVID Voltage Range0.60V-1.35VMax Memory Size (dependent on memory type)384 GBMemory TypesDDR3 800/1066/1333/1600Max # of Memory Channels4Max Memory Bandwidth51.2 GB/sECC Memory Supported‡YesScalability2S OnlyPCI Express Revision3.0Max # of PCI Express Lanes40Sockets SupportedFCLGA2011Max CPU Configuration2TCASE73°CPackage Size52.5mm x 45.0mmLow Halogen Options AvailableSee MDDSIntel® Turbo Boost Technology‡2.0Intel® vPro Technology‡YesIntel® Hyper-Threading Technology‡YesIntel® Virtualization Technology (VT-x)‡YesIntel® Virtualization Technology for Directed I/O (VT-d)‡YesIntel® VT-x with Extended Page Tables (EPT)‡YesIntel® 64‡YesInstruction Set64-bitInstruction Set ExtensionsAVXIdle StatesYesEnhanced Intel SpeedStep® TechnologyYesIntel® Demand Based SwitchingYesThermal Monitoring TechnologiesYesIntel® Flex Memory AccessNoIntel® Identity Protection Technology‡NoTitleProcessor KIT for HP Z820 Workstation Xeon E5-2643 Heatsink FanConditionNewContentProcessor unit, Genuine Heatsink and FanCPU manufacturerIntelModelXeon E5-2643SKUZ820_KITUPC882658497001http://www.compeve.com/Products/CPU/Intel/Xeon/Z820_kit/Z820KIT_compeve__1.jpghttp://www.compeve.com/Products/CPU/Intel/Xeon/Z820_kit/Z820KIT_compeve__2.jpghttp://www.compeve.com/Products/CPU/Intel/Xeon/Z820_kit/Z820KIT_compeve__3.jpghttp://www.compeve.com/Products/CPU/Intel/Xeon/Z820_kit/Z820KIT_compeve__4.jpg