Well looks like we have an answer use the shim and protect your cpu from being crushed and run hotter or dont and be carefull on how you apply the heat sink and run cooler (I would run cooler).
P.S. You may want to bend the retention clip slightly to reduce the presure on the core.
SANDMAN<P ID="edit"><FONT SIZE=-1><EM>Edited by thesandman on 01/19/01 10:20 PM.</EM></FONT></P>