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
Thermalright (high)	SLK-900U	20.0	31.6		40.5	none	1	very loud	easy
JMC	401100	19.5	35.1		47.4	grey	1	med	easy
Zalman	CNPS7000-Cu	21.0	35.1		48.7	none	1	low	easy
Taisol	CCP445172	20.2	37.7		50.9	none	1	med	easy
AVC	117140	22.6	37.8		50.4	none	1	med	med
Coolermaster	IHC-H71	23.0	37.0		51.1	none	1	loud	stiff
Arkua	8568	22.4	37.8		51.7	none	1	med	med
Zalman	CNPS7000A-Cu	25.9	39.2		52.5	none	1	low	easy
Thermal Integration (high)	TI-V7035TN	20.2	38.3		52.9	none	1	very loud	easy
Dynatron	DC1206BMY	19.5	38.1		53.1	none	1	med	easy
Dynatron	DC1207BMX	20.9	38.1		53.3	none	1	med	easy
Taisol	CEP447181	24.8	39.4		53.5	white	1	med	easy
Alpha	PAL8942	27.9	42.6		54.0	none	1	med	med
Intel	Stock 3.06GHz	24.9	39.9		55.0	none	1	med	easy
Arkua	Q85X-7J	24.6	41.3		56.5	none	1	med	easy
CoolJag	JVC661A	23.2	40.5		56.7	none	1	med	easy
Spire	SP411C5	25.2	42.5		56.9	white	1	loud	easy
Zalman	CNPS6500-AlCu	23.1	40.3		57.4	none	1	low	easy
TS Heatronics (6" fan dist)	NCU-1000	23.9	39.5		57.5	none	0	N/A	med
Taisol	CEP426151A	24.3	43.7		59.7	none	1	med	easy
Intel	Socket 478	22.4	41.8		59.8	carbon	1	low	med
Arkua	838T-7G	23.3	42.0		60.0	none	1	med	easy
Dynatron	DC1207BMW	23.2	42.7		61.1	none	1	med	easy
Arkua	8456X-8T	25.1	43.7		61.4	none	1	low	easy
Spire	SP420B8	25.3	42.7		61.5	none	1	low	easy
Dynatron	DC1206BM-S	22.4	43.2		62.0	none	1	med	med
AVC	117160	22.4	42.7		62.2	white pad	1	med	med
Evercool	NW9F715CA	23.8	42.9		62.3	none	1	med	easy
Aopen	ACP4LC	24.1	42.0		62.9	grey pad	1	med	easy
Scythe	Kamakaze	26.1	44.0		63.0	none	1	med	hard
Zalman	CNPS5700D-Cu	25.7	44.6		64.0	none	1	med	easy
TS Heatronics (12" fan dist)	NCU-1000	22.4	47.0		64.0	none	0	N/A	med
Globalwin	VA476	28.7	49.5		68.0	grey	1	med	easy
Arctic Cooling	SuperSilent4 Pro	25.1	46.8		68.1	none	1	low	stiff
Dynatron	DC1206BMV	23.1	45.1		68.2	none	1	low	easy
Vantec	GSN-7015	22.4	47.5		69.0	none	1	loud	stiff
Verax	P16	21.8	49.2		75.8	none	1	none	med
Arkua	848X-6B	27.2	54.5		80.4	none	1	low	med
Dynatron	DC1U-B02	20.9	53.8		88.3	none	1	loud	stiff
			50W		100W

For the purposes of our tests on the synthetic temperature test platform, we used a single 92mm x 92mm low-noise Zalman fan set at 6" and 12" distances from the TS Heatronics NCU-1000 heatsink to replicate typical computer case air flow in an impingement fashion. As we can see by the initial results, the stronger the airflow, the better the heatsink did indeed perform. For a passive cooler it looks as though we may see some fairly good results from the NCU-1000.

Rise Above Ambient Temp. (c)
Mfg.	Model	27mm large copper block		27mm large copper block
		50W		100W
Thermalright (high)	SLK-900U	11.6		20.5
Alpha	PAL8942	14.7		26.1
Zalman	CNPS7000-Cu	14.1		27.7
AVC	117140	15.2		27.8
JMC	401100	15.6		27.9
Coolermaster	IHC-H71	14.0		28.1
Taisol	CEP447181	14.6		28.7
Arkua	8568	15.4		29.3
Intel	Stock 3.06GHz	15.0		30.1
Spire	SP411C5	17.3		31.7
Taisol	CCP445172	17.5		30.7
Arkua	Q85X-7J	16.7		31.9
Dynatron	DC1207BMX	17.2		32.4
Thermal Integration (high)	TI-V7035TN	18.1		32.7
Cooljag	JVC661A	17.3		33.5
TS Heatronics (6" fan dist)	NCU-1000	15.6		33.6
Dynatron	DC1206BMY	18.6		33.6
Zalman	CNPS6500-AlCu	17.2		34.3
Taisol	CEP426151A	19.4		35.4
Spire	SP420B8	17.4		36.2
Arkua	8456X-8T	18.6		36.3
Arkua	838T-7G	18.7		36.7
Scythe	Kamakaze	17.9		36.9
Intel	Socket 478	19.4		37.4
Dynatron	DC1207BMW	19.5		37.9
Zalman	CNPS5700D-Cu	18.9		38.3
Evercool	NW9F715CA	19.1		38.5
Aopen	ACP4LC	17.9		38.8
Globalwin	VA476	20.8		39.3
Dynatron	DC1206BM-S	20.8		39.6
AVC	117160	20.3		39.8
TS Heatronics (12" fan dist)	NCU-1000	25.5		41.6
Arctic Cooling	SuperSilent4 Pro	21.7		43.0
Dynatron	DC1206BMV	22.0		45.1
Vantec	GSN-7105	25.1		46.6
Arkua	848X-6B	27.3		53.2
Verax	P16	27.4		54.0
Dynatron	DC1U-B02	32.9		67.4
		50W		100W

Looking at the final rise above ambient temperatures we can instantly see that with relatively strong passive airflow, the TS Heatronics NCU-1000 would prosper very well as a Pentium 4 cooler (Scythe handles the online retail of this Japanese heatsink). The results of the test with the 92mm fan placed 6" away may be difficult to directly emulate within a case considering the number of different variables that exist which can impede, or improve good ventilation, but none the less, the results are impressive.

As a passive heatsink, the NCU-1000 certainly has the means to perform very well indeed, and is obviously only limited by the airflow it receives within the computer enclosure. For the second test, we moved the 92mm Zalman fan back to a distance of 12" away from the NCU-1000, and watched what happened to the temperature reading on our digital thermometer....

Surprisingly, the temperatures only rose about 8-9 degrees Celsius. Considering the drop in airflow, the temperatures we see here for the 12" distances are still quite remarkable, though not as impressive as in the 6" test.

Ultimately, the TS Heatronics NCU-1000 is a passive cooler that is intimately tied to the benefits of an actively cooled computer chassis. The better the airflow from the front of the case, up to the powersupply, the better the NCU-1000 can perform. Thermal performance ranged from average to pretty good in our tests, an in each test that was without a fan directly mounted to the heatsink. Very cool indeed.

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