"The problems I encountered with this procedure are as follows;
First when the top 'H' plate was resting on the heatsink base and I
was trying to insert and screw in the thumbscrews the processor was
free to slide about, this could be corrected when the top 'H' plate
had been tightened a bit (provided that you had noticed it), but it
more than likely will cause the thermal paste underneath to spread
unevenly and result in poor thermal performance."
FULL STORY @ XTREMECOMPUTING (http://www.xtremecomputing.co.uk/review.php?id=384)