Intel E5-2403, Xeon. Processor socket: Socket 1356, Processor clock speed: 1800 MHz, Processor family: Intel Xeon. Maximum RAM supported: 375 GB, Supported memory types: DDR3-SDRAM, Supported memory clock speeds: 800, 1066 MHz. Thermal power: 80 W, VID Voltage Range: 0.6 - 1.35 V. Compatibility: Intel S2400, S1400, HNS2400LP, P4304SC2, P4308SC2, R1304, R1208, R2208, R2308, H2312, H2216