Heatsink Test – Joe
SUMMARY: Fine for everyday use.
The Pentium D 805 that was supplied by Directron was a retail version which comes with a heatsink; I decided to test it to give readers a “dividing line” – anything that performs worse than Intel’s heatsink might be a questionable purchase.
As you can see from the pic, it is a radial design with a copper core. The copper base appears reasonably flat; I used the Poor Man’s Flatness Test on it with good results:
Rotated 90º:
Intel’s retails heatsink was tested on an Asus P5WD2 motherboard P4 Motherboard Test Platform with a modified Pentium D 805 to read CPU case temps (both supplied by Directron).
| Heatsink | Case Temp | Ambient Temp | C/W | On-Die Temp¹ |
| Intel 775, 2635 rpm, <50 dBA² | 49.9 | 29.9 | 0.23 | 59 |
¹MBM on-die temperatures.
²50 dBA measured 8″ from the fan intake corresponds to about 30 dBA measured 3 feet from the fan, a very quiet noise level.
Results place Intel’s 775 retail heatsink in the lower rank of heatsinks tested to date (Heatsink Ranking).
Intel’s 775 retail heatsink does an OK job – not intended for aggressive use, it is fine for everyday use, such as cruising the web, word processing, etc.
Disclosure: Joe Citarella has a financial interest in a company developing thermosyphon products for electronic chip cooling.
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