Intel® Pentium® Intel Pentium D Lenovo ThinkCentre M55e, 3 GHz, Intel® Pentium® D, 0.5 GB, 80 GB, DVD-ROM, Windows XP Professional Lenovo ThinkCentre M55e. Processor frequency: 3 GHz, Processor family: Intel® Pentium® D, Processor model: 925. 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 3000. Operating system installed: Windows XP Professional. Power supply: 250 W. Chassis type: Tower. Product type: PC. Weight: 10.9 kg