Kingwin KA-9225 Heatpipe Heatsink

Heatsink Test – Joe

SUMMARY: Quiet heatpipe heatsink


Size: 70l x 93h x 98w mm; Weight: 245 grams

The good guys at Kingwin were nice enough to send a sample of their KA-9225 Heatpipe Heatsink to test out. This has four heatpipes with a 90 mm fan:


Key Features

  • Copper w/ copper base, 4 copper heat pipes
  • Fan: 90 x 90 x 25 mm; Speed 2,500 RPM; One ball bearing, 32 dBA, 43 cfm, 3.6 watts, Blue LED
  • Fits: Intel Celeron D~2.93 GHz (340J), Core Duo 2.33 GHz (775 Dual-Core), Pentium 4 3.73 GHz (775 Prescott), Pentium EE 3.73 GHz (775 Dual-Core), Pentium D 3.4 GHz (775 Dual-Core).
  • Fits: AMD: Athlon 64~4800+ (K8), 64 FX-51 (K8), 64 FX-53 (K8), 64 FX-55 (K8), 64 FX-57 (K8), 64 FX-60(K8),
    Opteron 2.6 (K8), Sempron 3300 (K8)

The base was not particularly well finished:


The polishing marks are evident both to the eye and fingertips. Parts that ship with the heatsink allow for multiple mounting options:


The Test

The Kingwin’s KA-9225 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).


Case Temp

Ambient Temp


On-Die Temp¹

Kingwin KA-9225, 51 dBA²





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 Kingwin’s KA-9225 in the lower rank of heatsinks tested to date (Heatsink Ranking).


A quiet heatpipe heatsink with a good sized footprint..

Disclosure: Joe Citarella has a financial interest in a company developing thermosyphon products for electronic chip cooling.

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