HP Compaq dc5750 AMD Athlon 64 X2 4200+ 1GB/250G DVD+/-RW WVST Bus Microtower PC. Processor clock speed: 2.2 GHz, Processor family: AMD Athlon, Processor model: 4200+. Internal memory: 1 GB, Maximum internal memory: 4 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 250 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA II. Discrete graphics adapter model: AMD Radeon Xpress 1150. Audio system: Realtek ALC260