We can see here that the stock fans are the quietest in the group with the Crystal fan also producing the least noise.  The Thermaltake Smart fan and the TMD 70mm fan produce about the same level of noise, though in the case of the TMD fan it gradually builds up.  The Delta fan is by far the nosiest in the test group, though not as loud as some fans out today.  These tests were taken from a distance of approximately 20cm (9") from the fans using a Radio Shack digital sound meter.  Nothing else but one of the Enermax power supply fans were running at the time, and this didn't influence the results at all.  Now lets look at the AMD results.

    AMD based CPU's are known to be very hot CPU's.  The cores of these CPU's is very small in most cases less than 100 mm2.  The Barton cored CPU we used for testing produced about 66 watts of heat running at 1833MHz, and 88 watts of heat at 2067MHz.  So how did the WS5 perform against other coolers?

    As we can see from the results the Delta fan based Thermalright SK6+ does very well reaching very low temperature wise.  However in this case the water cooling system provides the 'best' cooling but by a very small margin.  However compared to other heatsinks that have approximately the same sound level we see that it performs very well, besting the other heatsinks by about 7ºC.  How does this water cooling system perform when we turn up the heat, literally.

    Here we see a difference begin to show itself.  The WS5 still cools well, but doesn't cool as well as the smaller but much louder Theramlright heatsink.  Compared to the other two heatsinks the WS5 does about 8ºC better, but the WS5 is slightly louder using the Thermaltake Smart Fan II running at 3400RPM.  So far for a quiet water cooling system that is this small, this kit does very well, reaching into the range of the much louder heatsink/fan combinations.  However how does it work with a larger source of heat, that of the heat spreader of the Pentium IV.

    Intel has recently, with their PIV line, turned up the amount of heat produced by their processors.  Current PIV 2.4C GHz processors provide over 66 watts of heat at stock speeds, and over 83 watts of heat at 3GHz.  So how does the water cooling system perform with this heat source?

    What can we see from the results of this unoverclocked test?  The Vantec AeroFlow (reviewed here) does the best out of the three coolers that we tested, besting the WS5 water cooling system by about 5ºC.  However the WS5 does better than the stock Intel cooler by a couple of degrees.  The case temperature is an interesting part of the results.   The water cooling system has the highest case temperature, possibly due to the fact that the cooling occurs in the case area.

    Here we see similar results as those with the stock 2.4GHz processor, though the difference is slightly larger.  In the case of the best cooling the Vantec heatsink bests the WS5 by 7ºC and the Stock cooler by 11ºC.  The WS5 therefore does beat the stock cooler by about 4ºC, slightly more than its result in the previous test.  Again however the case temperature is much higher for the WS5 than for either of the other two coolers.