An update ...
On Tue, Oct 8, 2013 at 11:12 AM, sudheer k Muhammed sudheerkmuhammed@gmail.com wrote:
this wiki how may be useful.....
http://www.wikihow.com/Remove-a-Processor-Fused-to-a-Heatsink
as people have pointed out
alcohol is used but it is not the one which is drank...
its iso propyl alcohol ... electronics guys may remember this solution used to clean PCBs and evaporates in a miniute....
Thanks to many all with helpful suggestions. The common thread was to use Isopropyl alcohol.
The following link < http://www.wikihow.com/Remove-a-Processor-Fused-to-a-Heatsink%3E suggested the isopropyl alcohol + heat gun method.
I tried the heat gun method first with care it did not work.
Then I switched to the alcohol method. I kept the CPU + headsink submerged in "clinical spirit" (mostly isopropyl alcohol) for close to 16 hours. I was hoping this would loosen the paste using the dental floss method but no success! The paste had spread to all the edges + corner and I am not getting any gap to stick the floss in it.
On newegg.com, I read another user had similar problems with an AMD cpu.