Model:AT80614005940AAS LBVJ BRAND:Intel SERIES:Intel Xeon Encapsulation:FCLGA-1366 core:Intel Xeon Code name:Westmere-EP processorSERIES:L5609 Embedded option:Non-Embedded Number of cores:4 Core TDP - maximum:40 W Maximum clock frequency:1.86 GHz Data bus width:64 bit storage:288 GB Storage type:DDR3-800/1066 System bus type:QPI System bus speed:4.8 GT/s Cache memory:12 MB Minimum working temperature: Maximum working temperature:+ 63.1 C