IHS (Integrated Heat Spreader), a favorite amongst overclockers. Or not. They sure do protect our cores from being crushed when we use the massive coolers of today but still, overclockers always want the perfect contact between the cooling unit and the CPU. Thus many overlockers has polished down their IHS to mirror like surfaces or simply removed it. This to increase clock frequency and decrease temperature. Legit Reviews has posted a two-part article about the subject where Nathan @ Legit Reviews manages to get a really nice finish on his IHS as well as pray off the IHS, without the whole core following, using some nice tricks.
