Looking for a CPU heatsink for Dell Inspiron 570

[Mansive]

I just need a processor cooler that can fit inside the mini-tower case.

 

[Alabalcho]

Forget about it. This is Dell-custom motherboard (actually, BTX standard), with custom cooling solution.
http://downloads.dell.com/Manuals/common/inspiron-560_service%20manual_en-us.pdf