Fujitsu Intel Xeon E5440. Processor family: Intel® Xeon®, Processor frequency: 2.83 GHz, Processor socket: LGA 771 (Socket J). Thermal Design Power (TDP): 80 W, VID Voltage Range: 0.85 - 1.35 V. Number of Processing Die Transistors: 820 M, Processing Die size: 214 mm² compatible: PRIMERGY BLADE BX620 S4(S75F) PRIMERGY RX200 S4 D2671 PRIMERGY RX300 S4 D2519 PRIMERGY TX300 S4 D2529