Lenovo ThinkCentre M52, 3.4 GHz, Intel® Pentium® 4, 0.5 GB, 80 GB, DVD-ROM, Windows XP Professional Lenovo ThinkCentre M52. Processor frequency: 3.4 GHz, Processor family: Intel® Pentium® 4. Internal memory: 0.5 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 80 GB, Optical drive type: DVD-ROM. Discrete graphics card model: Intel® GMA 950. Operating system installed: Windows XP Professional. Power supply: 310 W. Product type: PC. Weight: 12.5 kg