I assume there is hollow pipes in there, standing air isnt the best method of cooling. Would it be advantageous to fill them with an inert fluid?
New Dual Silent Fan/Water Thermal Design
The GIGABYTE G1.Sniper 5 motherboard features an extreme heatsink design for the PWM area that allows users to employ both passive, active and water cooling setups. A stylish hollow body heatsink fitted with a silent integrated fan ensures superb heat dissipation during extreme performance and overclocked PC gaming configurations.
Tube connectors at each end of the heatsink provide easy integration with any water cooled system. These technologies help combat high temperatures by effectively removing heat from critical areas of the motherboard such as the CPU VRM zone, allowing it to remain cool, even when the battle heats up.
a) air cool it as it says in 1st paragraph with the fan or
b) connect a water cooling system which uses a pump to convey water in one of the connectors and out the other ..... then brings it to a radiator and around the rest of the loop to provide cooling as per 2nd paragraph.
This is described in greater detail in the manual.
Here's Asus version which shows the concept in more detail