Socket A Coolers: Autumn/Winter Complex Benchmarking of 45 Models
Part 2. Test Results (temperature, thermal resistance, noise level)
Our updated testing technique for Socket A coolers is given in the
Igloo 2310 and Igloo 2400 Coolers Review (the general issues and
the original version of the testing technique can be found in the
Comparative Testing Technique). The procedure hasn't changed since
The testbed is traditionally based on ABIT KD7-S mainboard.
This board features the temperature monitoring system based on National
Semiconductor LM90 chip. The chip is located in socket's heart which minimizes
various distortions and makes the measurements very precise.
ABIT KD7-S V1.0 mainboard
AMD Athlon XP 3000+ CPU (Barton)
OS Microsoft Windows XP
CPUBurn burnk7 utility is used for modeling a nearly maximum load, and
Motherboard Monitor utility is used for temperature control.
Diagram 1. Temperature
Each cooler was tested with the Stars 420 thermal grease
The diagram demonstrates the complex result
Diagram 2. Thermal resistance
Diagram 3. Noise parameters
Thermal resistance θja can be found from
the following correlation: θja = (Tj -
Ta)/Ph, where Tj is CPU core temperature,
Ta is ambient temperature (in this case it's 33°C), Ph
is CPU thermal power (in this case it's 70W).
Finally, here are the noise measurement results (the technique is described
in the Coolers noise characteristics and noise level measurement
Note: The background noise is 19 dBA
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