The most inconvenient is the Socket A fastening, I guess. And the mainboard must have mounting holes around the socket for the cooler to be mounted.

A clamp and two spring-loaded screws are used to mount the cooler on K8 processors.

The standard frame is used to secure the cooler on Socket 478, similar to the installation of the Scythe Shogun. The only thing I don’t quite understand is why they employ hex-headed screws rather than ordinary ones which you could turn with a screwdriver.

The downside of the fastening mechanisms is that you are not free to turn the cooler about – its position depends on the position of the socket on the mainboard.

To put the cooler on Socket LGA775, you first fasten two brackets on the mainboard, then attach the cooler to them and press it down with a flexible clamp.

The clamp is stiff but is expected to be secured with two tiny screws. I think the threading on the screws will get damaged soon if you reinstall the cooler often. The snapshot shows you the screw in comparison with a standard computer screw.