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Thermalright SLK-900U Copper Heatsink Review
Thermalright SLK-900U Copper Heatsink Review
  90%   
Abstract: Given these two different sizes of fans, rotational speeds, and CFM output it will be interesting to see just how the Thermalright SLK900U reacts thermally!

 Manufacturer  Category  Published  Author 
Thermalright   Cooling / Heatsinks   May 28, 2003   Max Page  

Home > Reviews > Page: Final Temperature Results

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
Thermalright (low) SLK-900U 21.0 35.2 48.8 none 1 med 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
JMC 400124 19.5 36.6 52.1 none 1 med-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
NengTyi XPC5000 23.8 38.4 53.9 none 1 med loud
Alpha PAL8942 27.9 42.6 54.0 none 1 med med
CPUMate DIA-10500 22.8 39.3 55.5 none 1 med easy
Zalman CNPS6500-AlCu 23.1 40.3 57.4 none 1 low easy
Glacialtech Igloo 3300 22.4 40.5 58.8 silver 1 low easy
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
Titan TTC-MT3AB 22.8 41.5 61.2 none 2 loud stiff
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
Eumax DW-45 22.6 44.0 62.7 none 1 med easy
Zalman CNPS5700D-Cu 25.7 44.6 64.0 none 1 med easy
Vantec CCK-7025 27.0 45.4 64.1 none 1 med med
JMC 400094 26.1 46.6 65.0 none 1 med easy
Globalwin VA476 28.7 49.5 68.0 grey 1 med easy
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
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

Despite the huge difference in sound the two fans have brought to the table, the thermal impact they each have is much closer. The initial results seem to indicate that the Thermalright SLK900U and Zalman fan combination would make a good pair all things considered. We'll have to wait for the final rise above ambient results before we know for certain.

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
Thermalright (low) SLK-900U 14.2 28.8
Arkua 8568 15.4 29.3
NengTyi XPC5000 14.6 30.1
Taisol CCP445172 17.5 30.7
Dynatron DC1207BMX 17.2 32.4
JMC 400124 17.1 32.6
CPUMate DIA-10500 16.5 32.7
Thermal Integration (high) TI-V7035TN 18.1 32.7
Dynatron DC1206BMY 18.6 33.6
Zalman CNPS6500-AlCu 17.2 34.3
Taisol CEP426151A 19.4 35.4
Arkua 838T-7G 18.7 36.7
Glacialtech Igloo 3300 18.1 37.1
Intel Socket 478 19.4 37.4
Dynatron DC1207BMW 19.5

37.9

Zalman CNPS5700D-Cu 18.9 38.3
Vantec CCK-7025 18.4 38.4
Titan TTC-MT3AB 18.7 38.4
JMC 400094 20.5 38.9
Globalwin VA476 20.8 39.3
Dynatron DC1206BM-S 20.8 39.6
AVC 117160 20.3 39.8
Eumax DW-45 21.4 40.1
Dynatron DC1206BMV 22.0 45.1
Vantec GSN-7105 25.1 46.6
Arkua 848X-6B 27.3 53.2
Dynatron DC1U-B02 32.9 67.4

50W

100W

It isn't much of a surprise to see that the Thermalright SLK900U when coupled with the Vantec Tornado fan rises to the top of this list of reference heatsinks. Thermal performance is spectacular, but the costs on the acoustic side are too high to make this a realistic option for most desktop situations. I'd be unwilling to have a fan that loud running 24x7 in my computer even though the temperatures are pretty damn sweet.

The more realistic option appears to be in the form of the Thermalright SLK900U with the 92mm Zalman fan. This configuration is light on the decibels and still cools very well indeed - well enough to still fall in the performance catagory in fact. The later combo is the better overall option, and we're glad to see Thermalright have designed the SLK900U to be capable of supporting 92mm wide fans.

We tested this cooler with the socket 478 Pentium 4 in mind because I don't think a heatsink of this size should get mounted onto AthlonXP chips which are officially only rated to 300 grams (or thereabouts) for their cooling solutions. Still, if you want to, and have a motherboard with mounting holes in the PCB, this is a valid option to consider.

There isn't too much more to say about the Thermalright SLK900U, the thermal performance is excellent, the design is unique, and the materials are all geared towards top of the line cooling. Thermalright have a winner here; especially when we consider the SLK900U's performance when coupled with a lower noise fan.

Related Articles:

Here are a few other articles that you might enjoy as well...

1. Vantec CCK-7015 1U Copper P4/Xeon Heatsink Review
2. Dynatron DC1206BM-V 1U Heatsink
3. JMC Phoenix 70 Radial Fin Heatsink
4. Arkua 848X-6B 1U Heatsink Review
5. Thermalright AX-7 Socket A heatsink

 Previous Page ° Heat Sink Review Index  

Table of Contents:

 1:  Thermalright SLK-900U Copper Heatsink Review
 2:  The heatsink from all sides
 3:  New Heatsink Test Parameters
 4:  Thermal And Acoustic Results
 5: — Final Temperature Results

List all Thermalright heat sinks that Frostytech tested?

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