iXBT Labs - Computer Hardware in Detail






Coolers for Socket 478, Spring/Summer 2002

Part 3. Test Results (temperature, noise level, thermal resistance)

Part 1. AVC, Spire and GlacialTech coolers
Part 2. Cooler Master, Thermaltake, Evercool and ADDA coolers
Our updated testing technique for coolers for Socket A processors was briefly described in the GlacialTech Igloo 2310 and Igloo 2400 Review (general issues and the original version of the technique are given in the Cooler comparison testing technique). Almost the same approach is used for the coolers for Socket 478. 

We chose the Fujitsu Siemens Computers D1337 mainboard as a test platform. This board, like the D1289, is equipped with a high-quality temperature monitoring system based on the NE1617A chip from Philips Semiconductors. This chip is located very close to the socket which allows eliminating various errors and distortions and improving quality of measurements which is required for objective comparison of thermal efficiency of coolers. 

To reduce test time we removed the Typical User Medium mode; the CPUBurn mode includes 4 basic test parts (each lasting 2-3 hours); the ambient temperature is maintained at 34-35°C (this is a typical temperature for cases with an optimized vent system). 


  • Fujitsu Siemens Computers D1337 mainboard
  • Intel Pentium 4 Willamette 1.9 GHz processor
  • Microsoft Windows XP 
The burnp6 utility from the CPUBurn packet is used to get a thermal load close to the maximum one, and the System Guard utility from Fijitsu Siemens Computers is used for temperature control. 
Diagram 1. Temperature results
Each cooler was tested with its own rated thermal interface
The diagram shows the combined results 
Today we supplement the review with one more characteristic -  θja (thermal resistance junction-to-ambient). The necessity appeared long ago, but we have been were looking for a way of measuring thermal power generated by a certain processor sample in real test conditions. Finally, we have solved the problem, and now we can get true temperature results of the tested systems and objective data on thermal resistance of these systems. 
Diagram 2. Thermal performance
Thermal resistance θja can be found from the following equation: θja = (Tj - Ta)/Ph, where Tj is a core temperature, Ta is an ambient temperature (here it is 35°C), Ph is processor thermal power (here it is 67 W). 
And now the noise measurements (the testing technique is given in the Cooler Noise Characteristics and Testing Technique). 
Diagram 3. Noise characteristic
Note: The background noise level is 25 dBA
Now let's turn to our Table of Ranks - an integrated assessment of consumer qualities of the coolers in question. 

Part 4. "Table of Ranks" (technical and economic assessment of the coolers and technical and economic ratings)

Testing technique. Integrated assessment of consumer qualities of the cooling systems

Vitaly Krinitsin (vit@ixbt.com)

Write a comment below. No registration needed!

Article navigation:

blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook

Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.