poweredge r710 server motherboard 2x cpu sockets 18x ddr3 dimm slots ydjk3 , Country of Origin: China , Brand: Dell , Form Factor: 2U Rackmount , MPN: YDJK3, 0YDJK3, CN-0YDJK3 , California Prop 65 Warning: N/A , Chipset: Intel® 5520 , CPU Sockets: 2 x LGA1366 (Socket B) , Supported CPUs: Intel® Xeon® 5500 series (e.g., X5550, E5520), Intel® Xeon® 5600 series (e.g., X5650, E5640, L5630) , Core Support: 2, 4, or 6 cores per CPU , Hyper-Threading: Supported , Intel QuickPath Interconnect (QPI): Yes , Cache Support: L2: 4MB / L3: Up to 12MB per processor , Total DIMM Slots: 18 DDR3 DIMM slots (9 per CPU) , Memory Type: DDR3 Registered (RDIMM) or Unbuffered ECC (UDIMM) , Memory Speeds Supported: 800 MHz / 1066 MHz / 1333 MHz , Minimum Memory: 1GB , Maximum Memory: 288GB (using 16GB RDIMMs) , UPC: 17222548869