The Quad-Core Intel Xeon Processor 5400 Series is compatible with Intel 5400, 5100, 5000P, 5000V and 5000X series of chipsets. Server boards based on these chipsets are optimized for quad core with advanced platform features of Dual Independent Bus and Fully Buffered DIMM memory technology offering up to 4X available bandwidth of current generation platforms. Improved I/O performance is possible with PCI Express and the option of Intel I/O Acceleration Technology.