While your CPU is underneath what looks like a chuck of metal scavenged from a battleship hull, your chipset is often left with either a simple extruded aluminium number or hidden with a spider chain of heatsinks and heatpipes.

If your motherboard has the former, and you're looking for a bit more overclocking headroom, you'll need to search for an upgrade. There are several solutions, but today I have Thermalright's HR-05. Let see how it performs.