DEFT-865G features a high-performance Intel Pentium 4 motherboard. The system core logic is based on Intel 82865G Chipsets. It is integrated with TI TSB43AB23 1394a controller and Realtek RTL8100BL Ethernet controller. CPU: ?Support Socket 478 for Intel Pentium 4/ Celeron processor up to 3.0/3.06GHz and higher speed (Celeron 1.7G/1.8G processor is not supported according to VRM10.) ?800MHz Intel NetBurst micro-architecture bus ?Hyper-Threading Technology supported