Genuine Dell XM091 RH822 Motherboard Mainboard System Board For the PowerEdge 840 Generation II System, Chipset Intel 3000, Supported CPUs: Dual-Core Intel Xeon processor 3000 Sequence, Intel Celeron Pentium, LGA775 Socket CPU and Memory NOT Included Compatible Part Numbers: XM091, RH822, 0XM091, 0RH822 Genuine Dell XM091, RH822 Motherboard Mainboard System Board For the PowerEdge 840 Generation II System Chipset Intel 3000 Supported CPUs:Dual-Core Intel Xeon processor 3000 Sequence, Intel Celeron Pentium, LGA775 Socket Compatible Part Numbers: XM091, RH822, 0XM091, 0RH822