HP 500B MT + S2031a, Essential. Processor clock speed: 2930 MHz, Processor family: Intel Core 2 Duo, Processor model: E7500. Internal memory: 2048 MB, Memory slots: 2x DIMM, Internal memory type: DDR3-SDRAM. Total storage capacity: 500 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA. Graphics adapter family: Intel, Discrete graphics adapter model: GMA 4500. Audio system: HD Audio