HP Intel Xeon 2.8GHz, Intel® Xeon®, Socket 604 (mPGA604), 130 nm, 2.8 GHz, 32-bit, Server/workstation HP Intel Xeon 2.8GHz. Processor family: Intel® Xeon®, Processor socket: Socket 604 (mPGA604), Processor lithography: 130 nm. Market segment: Server