Enzotech’s CNB series is the world’s first complete one-piece forged copper Northbridge heatsink with no interface or gaps. It gives you the best thermal performance possible without using a fan. The chipset is cooled to Optimum operating temperature with no fan noise or vibration. CNB-S1 can also be used for some Southbridge or VGA applications.

Features

• Multiple push pin locations for universal mounting on various board assembly (hole to hole distance 54.6mm and 59mm)
• Formed of pure copper for enhanced thermal conductivity
• Excellent surface flatness minimizes the interface between the heat source and heat sink

Dimension:	36 x 36 x 27.6(H) mm
Weight:	88g
Material:	Forged copper 1100
Base Flatness:	Polished mirror machined ~0.0003" to 0.0004"per inch

08-08-2009
Reviewer: Jerry (15)
Installed on an Asus Rampage Extreme, which comes with a water cooler (this machine is for my wife and she won''t have water). The Asus board is easy to remove the water cooler. This heat sink is NOT a bolt in for this board. I had to cut one of the mounting tabs off and create my own mounting system to get this heat sink on this board. Once installed it cools the NB to less than 100F without a fan (the case does have good air flow). Excellent heat sink, would use again.