Tutorial: Lapping your CPU
 

IHS or Integrated Heat Spreader is the visible top of a CPU that features the prints for
processor type and manufacturing date. Usually this copper plate is more or less crooked
when the processor leaves the factory and this leads to a bad contact between the CPU and
the cooler. This, again, causes the CPU core temperature to rise with any cooler. This is
the issue that the CPU lapping tries to overcome. In this article we'll show you updated
instructions to lapping your heat spreader.

http://metku.net/index.html?path=mods/lapping/index_eng

Great tutorial, often thought about trying this myself, perhaps I will in the near future.

Thanks again :)

K.

I thought about it too but decided I would have trouble selling it once I wanted to upgrade.