Feature C30 E31 S30 D30 Processors Intel® Xeon® E5-2600 Intel® Xeon® E3-1200 v2 Intel Core i3, i5, i7 Intel® Xeon® Intel® Xeon® Preloaded operating systems Genuine Windows 7 Professional 32/64-bit Lenovo Enhanced Experience Genuine Windows 7 Professional 32/64-bit Lenovo Enhanced Experience Genuine Windows 7 Professional 64 Lenovo Enhanced Experience Genuine Windows 7 Professional 64 Lenovo Enhanced Experience Chipset Intel® C602 Intel® C216 Intel® C600 Intel® C600 Supported memory types 1600MHz DDR3 RDIMM 1333MHz DDR3 RDIMM 1333MHz DDR3 ECC UDIMM 1600MHz DDR3 RDIMM 1333MHz DDR3 RDIMM 1333MHz DDR3 ECC UDIMM UDIMM (ECC) 2GB / 4GB / 8GB 1333-MHz DDR3 RDIMM (ECC) 2GB / 4GB / 8GB / 16GB 1333-MHz DDR3 2GB / 4GB / 8GB / 16GB 1600-MHz DDR3 RDIMM (ECC - Low Voltage) 2GB / 4GB / 8GB / 16GB 1333-MHz DDR3 UDIMM (ECC) 2GB / 4GB / 8GB 1333-MHz DDR3 RDIMM (ECC) 2GB / 4GB / 8GB / 16GB 1333-MHz DDR3 2GB / 4GB / 8GB / 16GB 1600-MHz DDR3 RDIMM (ECC - Low Voltage) 2GB / 4GB / 8GB / 16GB 1333-MHz DDR3 DIMM slots available 8 4 8 16 Total memory capacity 128GB 32GB 128GB 256GB Other supported operating systems Genuine Windows 7 Ultimate 64-bit Genuine Windows XP Pro 32/64-bit Red Hat Enterprise Linux 6.2 Genuine Windows 7 Ultimate 64-bit Genuine Windows XP Pro 32/64-bit Red Hat Enterprise Linux 6.2 Genuine Windows 7 Pro (32/64bit) Genuine Windows XP Professional (32/64bit) Red Hat Enterprise Linux 6.2 Genuine Windows 7 Pro (32/64bit) Genuine Windows XP Professional (32/64bit) Red Hat Enterprise Linux 6.2 Graphics support Up to 2 NVIDIA® NVIDIA NVS295 NVIDIA NVS300 NVIDIA NVS450 NVIDIA Quadro 400 NVIDIA Quadro 600 NVIDIA Quadro 2000, 2000D NVIDIA Quadro 4000 NVIDIA Quadro 5000 NVIDIA Quadro 6000 NVIDIA Tesla C2075 (Maximus Configurations) Integrated Intel HD Graphics NVIDIA NVS300 NVIDIA NVS450 (Tower only) NVIDIA Quadro 400 NVIDIA Quadro 600 NVIDIA Quadro 2000 (Tower only) NVIDIA Quadro 2000D (Tower only) NVIDIA Quadro 4000 (Tower only) NVIDIA NVS295 NVIDIA NVS300 NVIDIA NVS450 NVIDIA Quadro 400 NVIDIA Quadro 600 NVIDIA Quadro 2000, 2000D NVIDIA Quadro 4000 NVIDIA Quadro 5000 NVIDIA Tesla C2075 (Maximus Configurations) NVIDIA NVS295 NVIDIA NVS300 NVIDIA NVS450 NVIDIA Quadro 400 NVIDIA Quadro 600 NVIDIA Quadro 2000, 2000D NVIDIA Quadro 4000 NVIDIA Quadro 5000 NVIDIA Quadro 6000 NVIDIA Tesla C2075 (Maximus Configurations) GPU computing support NVIDIA Tesla C2075 NA NVIDIA Tesla C2075 NVIDIA Tesla C2075 Hard drive support 3.5" 7,200 rpm SATA 2.5"10,000 rpm SATA 2.5" 15,000 rpm SAS 3.5" 15,000 rpm SAS 2.5" Solid-state drive MLC type 3.5" 7,200 rpm SATA 2.5" 10,000 rpm SATA 2.5" Solid-state drive MLC Type 3.5" SATA (3/6 Gb/s) 7200rpm 250GB/500GB/1TB/2TB 2.5" SATA (3/6 Gb/s) 10K rpm 150GB/300GB/600GB 2.5" SAS (3/6 Gb/s) 15K rpm 146GB/300GB 2.5" SSD (3/6 Gb/s) 128GB/256GB/512GB 3.5" SATA (3/6 Gb/s) 7200rpm 250GB/500GB/1TB/2TB 3.5" SAS (3Gb/s) 15K rpm 300GB/450GB/600GB 2.5" SATA (3/6 Gb/s) 10K rpm 150GB/300GB/600GB 2.5" SAS (3/6 Gb/s) 15K rpm 146GB/300GB 2.5" SSD (3/6 Gb/s) 128GB/256GB/512GB RAID support 0, 1, 5 0,1, 5 (Tower) 0, 1 (SFF) 0, 1, 5 0, 1, 5, 10 Network support Gigabit Ethernet Gigabit Ethernet Gigabit Ethernet Dual Gigabit Ethernet Power supply 800W (90% Efficient) 280W (85% Efficient) 450W (92% Efficient) 240W (85% & 92% Efficient-SFF only) 610W 90% Efficient 1,120W (90% Efficient) IEEE 1394 support No Yes (Optional) Yes (Optional) Yes (Optional) Audio output HD 5.1 Integrated Audio 5.1 HD 5.1 HD 5.1 On-board eSATA support Yes Yes Yes Yes USB ports 12 9 12 12 Acoustics Idle operating noise level w/SATA 24db 22db (Tower) 24db (SFF) 26db 26db Environmental certifications ENERGY STAR and EPEAT® apply to select models only ENERGY STAR EPEAT Gold GREENGUARD® 80 PLUS Gold ENERGY STAR EPEAT Gold GREENGUARD RoHS 80 PLUS Platinum ENERGY STAR EPEAT Gold GREENGUARD RoHS 80 PLUS Gold ENERGY STAR EPEAT Gold GREENGUARD RoHS 80 PLUS Gold Recycled plastic content System only 65% recycled content 65% recycled content 65% recycled content 65% recycled content *Pending availability of 16GB DIMMs