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AVC Sunflower II Heatsink Review

Author: Dennis Garcia

Published: Tuesday, December 03, 2002

Introduction

The AVC Sunflower has been the heatsink of choice here in the Ninjalane labs ever since our first Pentium 4 motherboard review; we have yet to be disappointed with its performance. When I met up with AVC at Comdex this year they showed me the next generation of Sunflower heatsinks dubbed the Sunflower II.

This new heatsink is very similar to the original design in that we still have a solid copper core surrounded by an extruded aluminum heatsink. The major difference is the improved cooling surface facilitated by 66 thin aluminum fins surrounding the copper core. This is a 12% increase over the original design using 52 fins. Other changes include an improved cooling fan and easy to install fan and heatsink retention system.

As you can see two of the legs are moveable for easy installation, just push and clip, removal is also a snap. Just press down and pull each of the legs away.

The improved cooling fan has yet to be listed on the AVC website but here is what I know about it.
70x70x15
Full Dual Ball bearing
4400rpm
40 CFM
>44 dB(A)

The fan has 9 impeller blades with a very aggressive pitch. I gather that the treatment near the tips of the impeller blades is to control noise and help direct airflow.