A Comparison of 34 Coolers for the AMD Athlon XP

Noisy Or Quiet: From 38 To 73 DB(A)

The noise level of the tested fans varies according to the model, from an extremely quiet, barely audible 38 dB(A) (which can be compared to a loud whisper) up to an annoying 67 dB(A) (loud talking).

To compare the noise of the fans, you should go by the following rules of thumb: twice the volume is equivalent to an increase in the noise level of 10 dB(A); four times the volume is therefore equivalent to an increase in the noise level of 20 dB(A); differences of 1 dB are virtually inaudible, while differences of 3 dB(A) are clearly noticeable.

Please note that the measurements were taken at a constant ambient noise level of 34dB(A) with the housing opened, at a distance of approximately 35 centimeters from the fan wheel. Consequently, the levels will be considerably lower than our results when the housing is in place.

Hot Or Cold: Thermal Resistance Is Decisive

The thermal resistance is the decisive value in this test. It is the measure for the cooler's performance capacity . It is calculated from the processor's power loss ratings PV , the die temperature TD and the surrounding temperature TA , according to the following formula:

Rtherm =(TD -TA )/PV in °C/W

The die temperature is an operand only. Its value during the test is influenced to a great extent by the CPU's power loss rating and can vary greatly, even with similarly rated clock speeds. "Our" Athlon-XP 2400+ scored a maximum power loss of 57 Watts. According to the data sheet, however, the Athlon-XP 2400+ can devour up to 68 Watts. If you were to operate these two 2400+-CPUs using the same cooler, with a thermal resistance of, say, 0.5°C/W, the die temperature of the THG 2400+-CPU would be around 5.5°C cooler.

Summary
  1. 34 Alternatives To The AMD Boxed Cooler
  2. Theory: The Optimum Cooler
  3. Thermal Interface: Pad Or Paste
  4. Measure Like The Professionals: Measuring Temperature At The Die
  5. The Coolers In Depth
  6. MF018-021
  7. AVC Co. Ltd.: 112C81 And Z6M330 Frost
  8. AVC Z6M330
  9. Coolermaster CP5-7JD1B-0L & HAC-V81-X-Dream
  10. Variable Cooling Capacity: Coolermaster HAC-V81 X-Dream
  11. Cooljag JVC652A
  12. Fanner: Spire Cu King II (5E070B1H3G) & Falcon Rock (5F271B1M3)
  13. Athlon XP Under The Rock: Falcon Rock (5F271B1M3)
  14. Global Win Technology: Cooling Towers CAK4-86, CAK4-88T & TAK58
  15. Large, Heavy And Temperature-Regulated: CAK4-88T
  16. As Quiet As A Whisper And Simple To Mount: TAK58
  17. Inconspicuous But Effective: Neng Tyi's KNO2 And KNO1
  18. Lighter, Smaller And Weaker: KN01
  19. Pentalpha APSK0168-B, APSK0181-C & APSK0181-L
  20. The Performer: APSK0181-C
  21. The Quiet One: APSK0181-L
  22. Springspread/ Neolec Vento III & Unique2800
  23. Installation Guide In The Lid: Unique2800
  24. A German Quality Product: EKL 20704101059
  25. Variable Cooler Monster For Overclockers: Swiftech MCX462-U
  26. Very Loud And Very Powerful: MCX462-U+VANTEC Tornado
  27. Easy Upgrading: Taisol CGK760098 & CGK760172
  28. Good Performance And As Quiet As A Whisper: CGK760098
  29. New-Age Volcanoes: Thermaltake Volcano 9 & Volcano 7+
  30. Manual Or Automatic: Volcano 9+
  31. Battle Of The Titans: TTC-CU5 TB & TTC-D5T(F/CU35)
  32. Good Cooling Performance But Loud: TTC-D5T
  33. Unusually Bad But Extremely Quiet: TTC-D5 TB
  34. Innovative And Very Well-Performing: Vantec Aeroflow VA4-C7040
  35. Brand-New: Molex 37256-0005
  36. Regulated Or Not: Four Tiger Electronics
  37. Heavier, Quieter And With Better Cooling Performance: Miprocool II
  38. Lighter, Smaller, But With More Cooling Power: SDC38130BC
  39. Heavy But Zippy: Dragonfly-P2B
  40. Noisy Or Quiet: From 38 To 73 DB(A)
  41. Technical Data: 34 Coolers In Comparison
  42. Conclusion: Not Much Innovation In The Cooler Market
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