A Roundup of Coolers for Pentium 4: Q4'2003
Spire EasyStream III and QuieTude II
Here are two coolers by Spire whose produce is quite rare on the Russian market. The coolers are thoroughly packaged in boxes of one style.
In particular, there are plastic lids fitted on the top and the bottom of the cooler. While the purpose of the bottom lid is evident (to protect the base and the thermal interface), it's not clear what use the top lid is for.
By design, both coolers are the same: on the radiator, there is a massive plastic frame on top of which there is a fan and a lever. The lever is used for fastening the cooler on the processor socket: when moving it, special "tabs" run into the holes of the socket plastic frame. Thus, the coolers is fixed and pressed to the processor.
As regards the radiator, it is fully made of aluminum in the EasyStream model, and that of the QuieTude model has a copper insert in the base. Also note the numerous vertical saw cuts which slightly increase the surface area of the radiator.
On the base of the radiators, there is a layer of thermal interface which by quality is not inferior to KPT-8 thermal paste. But by its adhesion the thermal interface surpasses the domestically produced thermal paste: as a rule, on removing the cooler the processor is pulled out of the socket and remains stuck to the base :).
The processing quality of the base is good enough, albeit not of mirror gleam.
As regards the fans, on the EasyStream III model there is a 70 mm fan (height = 15 mm) with the rotational speed 3700 rpm and 29.7 dBa noise level. The airflow = 28 CFM. On the QuieTude II model, there is a 70 mm fan (height = 25 mm) of variable rotational speed (within 3000 to 5500 RPM). The noise level fluctuates within 21.0 to 43.0 dBa, and the airflow - within 25 to 50CFM.
Note that on the fans there is a protective grid which protects the work area of the fan against foreign matters (like wires or fingers :-).
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