CPU Type: Build in Intel Socket 2011-3: Square type (80 x 80mm; The maximum length of the heatsink screw thread is 3.7mm.) Processors
Intel Socket 2011-v3 for Intel Xeon processor E5-1600 v4 product family
Intel Socket 2011-v3 for Intel Xeon processor E5-2600 v4 product family
CPU Type: Quad-Core Intel Xeon 5400 Series (45nm)
Dual-Core Intel Xeon 5200 Series (45nm)
Quad-Core Intel Xeon 5300 Series
Dual-Core Intel Xeon 5100 Series
CPU Type: Intel Xeon W5500 Series (130W)
Intel Xeon X5500 Series (95W)
Intel Xeon E5500 Series (80W)
Intel Xeon L5500 Series (60W/38W)
Intel Six-Core Xeon 5600 Series (BIOS Version 708)
Intel Quad-Core Xeon 5600 Series (BIOS Version 708)