HP Compaq dc7900 Convertible Minitower PC (ENERGY STAR). Processor frequency: 3 GHz, Processor family: Intel Core 2 Duo, Processor model: E8400. Internal memory: 1 GB, Internal memory type: DDR2-SDRAM, Maximum internal memory: 16 GB. Total storage capacity: 160 GB, Hard drive interface: Serial ATA II, Hard drive speed: 7200 RPM. Optical drive type: DVD±RW. Discrete graphics adapter model: Intel GMA 4500M