Lenovo ThinkServer TD100, 2.5 GHz, E5420, 2 GB, DDR2-SDRAM, 250 GB, Tower Lenovo ThinkServer TD100. Processor family: Intel® Xeon® 5000 Sequence, Processor frequency: 2.5 GHz, Processor model: E5420. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM, Memory layout (slots x size): 2 x 1 GB. Total storage capacity: 250 GB, HDD size: 3.5", HDD interface: Serial ATA, Optical drive type: DVD-ROM. Redundant power supply (RPS) support. Chassis type: Tower