HP Z820 Workstation. Processor model: Intel Xeon E5-2620 (2.00 GHz, 15 MB cache, 6 cores), Motherboard chipset: Intel C602. Memory slots: 16 DIMM. Discrete graphics adapter model: NVIDIA Quadro 4000 (2 GB). Optical drive type: SATA SuperMulti DVD+/-RW. Operating system provided: Windows 7 Professional 64