2 x 4GB ECC DDR3 PC3 - 12800E? SDRAM (1600MHz UDIMM)

Lenovo (43521S6) – S30 , TWR , Intel? C602 Chipset , Xeon E5-1620 3.7GHz 4c , 2 x 4GB ECC DDR3 PC3 – 12800E? SDRAM (1600MHz UDIMM) , 1 x 500GB SATA (7200rpm) , DVDRW , NVIDIA? Quadro K2000 (2GB, Dual link DVI-D+DP+ DP) , LAN , Serial Port x 1 ,? USB Keyboard , USB Mouse , Int. Spk , CnL Windows 7 Pro 64bit preload with Windows 8 RDVD? , 3+3