505886-B21 I HP Intel Xeon DP Quad-core E5506 2.13GHz Processor Upgrade Kit CPUTechnical Information Processor Manufacturer Intel Processor Core Quad core (4 Core) Clock Speed 2. 13 GHz QuickPath Interconnect 4. 80 GT s L1 Cache 256 KB L2 Cache 1 MB L3 Cache 4 MB 64 bit Processing Yes Process Technology 45 nm Processor Technology Virtualization Technology Processor Technology Extended Memory 64 Technology Processor Technology Enhanced SpeedStep Technology Processor Socket Socket B LGA 1366 Listing may include stock images,