With Sandy Bridge and Ivy Bridge, standard Core i5 and i7 processors offer enough multiplier headroom for 400MHz overclocks. K-series chips are only required to push higher. Things are different for Haswell, which removes the multiplier allowance for standard CPUs, making multiplier-based overclocking exclusive to K-series processors."
A quick patch update to Windows can extend the useful life of a PC. To take the fear out of Upgrading Windows 98 to Windows XP, rely on this guide. - PCSTATS Tips