HP E5507, Intel® Xeon® 5000 Sequence, Socket B (LGA 1366), 45 nm, Tray, E5507, 2.26 GHz HP E5507. 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 clock speeds supported by processor: 800 MHz. Market segment: Server