What type of guarantee should you look for when comparing coolers for a cpu?
Lower noise, long-life bearing fans, higher CFM (Airflow rate), power efficiency. Look up reviews -- The look and size of a cooler has very little effect on its actual performance. Some of the best coolers are the upright 120mm radiator style (Looks like a small car radiator), which typically are amongst the cheapest coolers. They don't look good, though.
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