Since the Dynatron Model S uses a rather small fan, we don't expect it to be really that much of a noise maker - and it isn't. The noise the small heatsink produces is largely from the air moving between the many skived aluminum fins. To listen to this heatsink, simply click on the pair of headphones pictured below.

Synthetic Temperature Test Results: *Ranked according to 100W interface die test results.

FrostyTech Synthetic Temperature Test Platform Results
	Mfg.	Model	Ambient Temp.	27mm large copper block		27mm large copper block	Thermal pad	No. Fans	Fan Noise	Clip force
				50W		100W
1	AVC	117140	22.6	37.8		50.4	none	1	med	med
2	Arkua	8568	22.4	37.8		51.7	none	1	med	med
3	Vantec	GSN-7025	22.5	41.7		58.5	none	1	med	med
4	Chauh Choung	DTA-478	22.4	42.1		59.0	carbon	1	low	med
5	Intel	Socket 478	22.4	41.8		59.8	carbon	1	low	med
6	Dynatron	DC1206BM-S	22.4	43.2		62.0	none	1	med	med
7	AVC	117160	22.4	42.7		62.2	white pad	1	med	med
8	Vantec	GSN-7015	22.4	47.5		69.0	none	1	loud	stiff
				50W		100W

That small fan really turns out to be the weak point of an otherwise really well made heatsink. With so little air moving through relatively dense fins, the Dynatron Model S can fair no better than just below the performance curve set by the stock Intel socket 478 cooler. We would have expected the Model S to do a little better than that, and I think with a slightly larger fan it will be able to jump a head.

Rise Above Ambient Temp. (c)
	Mfg.	Model	27mm large copper block		27mm large copper block
			50W		100W
1	AVC	117140	15.2		27.8
2	Arkua	8568	15.4		29.3
3	Vantec	GSN-7025	19.2		36.0
4	chauh Choung	DTA-478	19.7		36.6
5	Intel	Socket 478	19.4		37.4
6	Dynatron	DC1206BM-S	20.8		39.6
7	AVC	117160	20.3		39.8
8	Vantec	GSN-7105	25.1		46.6
			50W		100W

Two degrees were all that separated the Dynatron Model S on the 100W test from the stock Intel socket 478 cooler. While the underlying technology and techniques used on the Model S are very good, the fan really holds the entire heatsink back in terms of performance.

The machined base plate was great to see, and if you aren't intent on using something like arctic silver as the thermal compound you'll probably be pleased to see that the white thermal compound comes pre applied to the base - making it ready for instantaneous installation. In the end, we'll have to say, good cooler design and construction, bad fan choice.