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How to take care when you buy new CPU?

Latest CPU requires higher rating power supply. So, always ensure that your power supply is rated at 350 W at least. Only buy those heatsink and fan, which keep CPU at normal temperature. Always buy original CPU, check hologram seal on Intel CPU and for AMD CPU make sure the plastic casing is not broken. If you want CPU to do intensive tasks such as graphic processing, animation and gaming go for CPU with 256 KB or more of L2 cache. Pentium 4 has 512 KB of L2 cache. Go for CPU which supports 3D Now! Or SSE if you want gaming application to run. Go, for Palomino cores, if no power requirement and heat dissipation issue. Go for Cyrix M III processor, if you want only basic office applications to run. Go for highest clock speed and largest board cache memory, if high end 3D design and CAD applications want’s to run.