HP Intel Xeon E5520, Intel® Xeon® 5000 Sequence, Socket B (LGA 1366), 45 nm, E5520, 2.26 GHz, 64-bit HP Intel Xeon E5520. Processor family: Intel® Xeon® 5000 Sequence, Processor socket: Socket B (LGA 1366), Processor lithography: 45 nm. Memory channels: Triple-channel, Maximum internal memory supported by processor: 144 GB, Memory types supported by processor: DDR3-SDRAM. Market segment: Server, Number of Processing Die Transistors: 731 M, Processing Die size: 263 mm². Compatibility: DL320 G6