Summary: Check your motherboard at the manufacturer web site. I'm sure this product is wonderful, but all I can do now is return it or use it for a paperweight. Neither of my 2 motherboards have the "cooler mounting holes around the CPU socket". (These are needed because, depending on the version, its either very heavy, or very very heavy). This is noted in the fine print on the back of the packaging, but I have to fault Amazon for not noting it in the product description.
Summary: The Zalman website states that this CPU fan fits to Socket-A. But it is not true if your motherboard doesn't have "heat-sink holes". Unless you go read the manual carefully, you can't find this information.