Newb heatsync question

[joecool]

I recenty bought a GA-8NS motherboard. I am use to seeing a metal backer plate to screw your fan into. In this case there is a plastic backer which large pegs attach into. The problem is that the heatsync fan that I bought is a srew in. Is there something that I am missing?

Thanks

 

[Didou]

Which heatsink is it ?

 

[joecool]

heat sync

it is a zalmin (one of the flower heatsyncs)