FrostyTech Synthetic Temperature Test Platform Results
	Mfg.	Model	Ambient Temp.	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block	Thermal pad	No. Fans	Fan Noise	Clip force
				50W	50W		100W	100W
1	Arkua	628	23.9	42.7	42.1		58.9	62.3	none	1	med	med
2	Thermal Integration	TI-V77L	26.5	39.1	44.4		57.5	63.6	grey	1	med	med
3	Sibak	AC02625B	23.2	41.3	59.0		43.2	64.7	none	1	loud	med
4	Swiftech	MCXC370	21.4	38.3	43.4		53.5	65.7	none	1	med	med
5	Coolermaster	HHC-001	21.7	40.0	44.8		56.3	68.1	none	1	loud	easy
6	Tocools	Crown	23.2	38.8	53.2		47.9	70.2	none	1	loud	stiff
7	Dynatron	DY1206BH-625	23.2	40.0	55.1		47.6	70.4	none	1	loud	stiff
8	Vantec	CCK-6027D	27.4	45.4	49.6		64.9	73.4	none	1	med	med
9	Coolermaster	HSC-V62	21.4	47.4	52.8		61.7	74.5	none	1	quiet	easy
10	Cybercooler	P5750	23.3	43.4	49.2		63.5	74.9	none	1	loud	med
11	Swiftech	MCX370	22.3	42.0	46.1		60.3	75.6	none	1	med	hard
12	NengTyi	XPC5000	23.9	46.5	49.1		69.1	76.1	none	1	med	med
13	Taisol	CGK760092	23.4	42.7	51.3		61.2	77.5	pink	1	low	med
14	Zalman	CNPS6000-Cu	24.8	46.4	53.8		65.6	78.2	none	1	very low	easy
15	AVC	112AM1	24.8	46.6	52.9		70.1	79.6	none	1	low	stiff
16	GlacialTech	Igloo 2310	23.5	44.9	53.7		66.7	80.8	silver	1	med	very stiff
17	Sibak	AE01625B	23.5	40.8	54.4		57.1	81.0	none	1	loud	easy
18	Coolermaster	HHC-L61	21.5	47.2	48.3		71.2	82.3	none	1	quiet	easy
19	Thermaltake	Volcano 6cu+	26.5	40.3	55.3		58.6	84.4	carbon	1	loud	med
20	JMC Products	400023	23.1	44.5	65.2		55.3	85.2	Chomerics T725	1	low	easy
21	Sibak	AT01515B	23.0	45.1	64.6		60.1	95.2	none	2	med	stiff
				50W	50W		100W	100W

These tests are all conducted with the fan under full load, so the noise levels are not the same as the recording or measured values. Anyway, now that is clear let's have a look at how the brand new HSC-V62, just released at Computex today, fairs.

For a heatsink classed as a low-noise solution the HSC-V62 from Coolermaster is pretty good performer. The copper skive design and temperature reactive fan put it in a good position so that it can remain quiet when then thermal load is low, or increase to full cooling performance when things are overclocked, or the heat load high.

The HSC-V62 initially performs very favorably against heatsinks from Vantec for instance which do not have any means of scaling the fan speed and noise levels. The only question which remains is how high up the ladder does the HSC-V62 sit?

Rise Above Ambient Temp. (c)
	Mfg.	Model	27mm large copper block	15mm small copper block		27mm large copper block	15mm small copper block
			50W	50W		100W	100W
1	Thermal Integration	TI-V77L	12.6	17.9		31.0	37.1
2	Arkua	628	18.8	18.2		35.0	38.4
3	Sibak	AC02625B	18.1	35.8		20.0	41.5
4	Swifech	MCXC370	16.9	22.0		32.1	44.3
5	Vantec	CCK-6027D	18.0	22.2		37.5	46.0
6	Coolermaster	HHC-001	18.3	23.1		34.3	46.4
7	Tocools	Crown	15.6	30.0		24.7	47.0
8	Dynatron	DY1206BH-625	16.8	31.9		24.4	47.2
9	Cybercooler	P5750	20.1	25.9		40.2	51.6
10	NengTyi	XPC5000	22.6	25.2		45.2	52.2
11	Coolermaster	HSC-V62	26.0	31.4		40.3	53.1
12	Swiftech	MCX370	19.7	23.8		38.0	53.3
13	Zalman	CNPS6000-Cu	21.6	29.0		40.8	53.4
14	Taisol	CGK760092	19.3	37.8		27.9	54.1
15	AVC	112AM1	21.8	28.1		45.3	54.8
16	GlacialTech	Igloo 2310	21.4	43.2		30.2	57.3
17	Sibak	AE01625B	17.3	30.9		33.6	57.5
18	Thermaltake	Volcano 6cu+	13.8	28.8		32.1	57.9
19	Coolermaster	HHC-L61	25.7	26.8		49.7	60.8
20	JMC Products	400023	21.3	42.0		32.1	62.0
21	Sibak	AT01515B	22.1	41.6		37.1	72.2
			50W	50W		100W	100W

Things change a little on the rise above ambient temperature results table. The list of reference coolers is formidable and the Coolermaster HSC-V62 competes pretty well, coming in about mid-level in the list. Just slightly shy of the under 50 degrees rise above ambient mark the all-copper skive heatsink is still one with a lot of good cooling potential, and a heatsink whose variable RPM noise levels will be welcome to many users of lower power processors.

The variable speed fan is undoubtedly one of the more interesting aspects of the HSC-V62, and it was great to see Coolermaster had placed the Thermistor in a location out of direct airflow. Another manufacturer we have looked at in the past from Germany had a similar fan, but placed the thermistor directly in the path of the fan exhaust. This resulted in a fan that essentially spun at the same speed no mater how hot the rest of the heatsink was. The German manufacturers had apparently tried to adopt a fan intended for powersupply or case cooling for use as a CPU fan and did not take into consideration what ambient air temperatures would have to be in order for the fan to ramp up its speed.

While other companies have attempted to place the thermistor in the body of the heatsink by adjoining wires, the Coolermaster solution here is much simpler, and indeed quite effective. It was interesting to listen to the pitch of the fan as the Coolermaster HSC-V62 sat on our synthetic temperature test platform and the temperature increased. From an essentially quiet 3000RPM the fan increased its' speed to accommodate the 100watt heat load we placed under it.

I think it is a bit contradictory to class this as an overclockers heatsink because overclockers tend to run their systems at the hottest temps continually. Rather, this heatsink would be great for anyone looking for good cooling but with some sensitivity to noise. Computers do not always run at the hottest temps, and with the HSC-V62 the heatsink fan can scale back to accommodate that aspect.