PrimeCooler PC-HC5+CU air cooler heatsink
 

First off we have to say that this PrimeCooler PC-HC5+CU gives very good cooling performance as we can see in this graph. Another benefits is that we found the fan to be quiet.
The PrimeCooler PC-HC5+CU does not weigh that much either considering it is a full copper design and build for all AMD Athlon & Intel Pentium 4 processors.

at: http://www.a1-electronics.net/Heatsi...+CU_June.shtml