 "Intel Xeon E5-2609V2 / 2.5 GHz processor" " Intel processor - 712741-B21 Add-In Processors (CPUs) CDW.com
"Intel Xeon processors represent a broad product line to meet a range of demanding performance and energy efficiency requirements for compute-intensive embedded, storage, and communications applications." 
 "495916-B21 HP Xeon E5506 4 Core 2.13GHz LGA1366 MB L3 Processor"
 General Information: Brand HP Part # 495916-B21 Category Processors > Unboxed / OEM Condition Refurbished Availability In Stock Technical Specifications: Type Server Series Xeon Speed 2.13 GHz Model E5506 Cores 4