I havent done any overclocking for quite a while, but back when i did i remember one of the big issues was that when you overclocked by increasing the FSB you were also increasing the PCI bus as well from its normal 33Mhz and this could cause pci periphials to not work correctly or erraticly. Is this sill the case with modern C2D systems. Is there anything tied to the FSB speed besides the CPU and RAM? Are USB? PCI?, PCIexpress speeds effected when overclocking C2D systems?