Motherboard For Genuine DELL Optiplex 760 Desk Top (DT) Systems, Dell P/N#: R239R, D517D, M859N ~MOTHERBOARD ONLY~ DOES NOT INCLUDE: Processor, Memory, Heatsinks, or Heatsink Retainers Chipset: Intel Q43 Express, Compatible with Intel Core 2 Duo and Quad Processor, Intel Core Duo Processors, Pentium Dual Core Processors, Celeron, and LGA775 Socket Integrated ADI 1983 HD Audio, Integrated Intel GMA 4500 Dell Part Numbers: D517D, R230R, M859N