HP 420, Z. Processor family: Intel Xeon, Processor clock speed: 3.2 GHz, Processor model: E5-1650. Internal memory: 8 GB, Internal memory type: DDR3, Memory slots: 8x DIMM. Hard drive capacity: 0 GB, Solid-state drive capacity: 128 GB, Solid-state drive interfaces: Serial ATA. Optical drive type: DVD Super Multi. Audio system: HD Audio