Any cooler will stop a CPU from overheating. If you run a current model CPU with no cooler at all, it will overheat and possibly permanently damage the CPU. Athlons and Durons can die in seconds, and often do when someone’s failed to notice that their cooler isn’t clipped on right and thus doesn’t actually touch the heat sink. But if you’re just using an inadequate cooler, as opposed to none at all, your computer will merely be flaky.
You’ll be able to cure the problem by improving your case ventilation and/or upgrading to a better cooler. By using the ThermalTake Big Water 760i Liquid Cooling System your problems are solved.