I believe that you mean that the old CPU is compatible with the new 
motherboard but that the old heat sink and fan are not compatible with 
the new motherboard. Buying a new heat sink and fan from the same source 
as your new motherboard should assure a compatible product. Other than 
that, you can search the Internet for retailers of your motherboard and 
buy a compatible heat sink and fan from one of those retailers. A lot of 
retailers offer combination purchases of motherboard/CPU/heat sinks/fans 
so you can determine the compatible products before purchasing just the 
heat sink and fan.

Tom Mayer

Kenny wrote:
> I bought a new motherboard and the cpu fits, but not the motherboard. How do i check if it is compatable with my motherboard before i buy it? thanks all
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