HP 1, Z. Processor family: Intel Xeon, Processor clock speed: 3.3 GHz, Processor model: E3-1245. Internal memory: 4 GB, Internal memory type: DDR3, Memory slots: 4x DIMM. Hard drive capacity: 500 GB, Hard drive interface: Serial ATA. Graphic adapter: HD Graphics P3000. Optical drive type: DVD Super Multi