nPowertek NPH 775-140 HC

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The good guys at nPowertek were nice enough to send a sample of their NPH 775-140 HC heatsink. This features 104 aluminum fins with a 33 mm copper heatpipe core.


Key Features

  • Aluminum fin construction with copper core heatpipe
  • Dimension 92 x 75 mm
  • 92 mm Fan, speed 3000 rpm, four pin molex connector
  • Weight ~400 grams
  • Supports all Intel® Socket LGA 775 CPU

The base is the bottom of the heatpipe core and appears well finished:


Mounting is very simple – the heatsink is secured to the motherboard with four push-pins. This system does not require removing the motherboard from the case.

Performance Test

The NPH 775-140 was tested on an Asus P5WD2 motherboard with a modified Pentium D 805 to read CPU case temps while running Prime 95.


Case Temp

Ambient Temp


On-Die Temp¹

NPH 775-140, 2974 rpm, 58 dBA² 52.1




¹On-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.

Performance placed this heatsink in the lower range of heatsinks tested HERE; the noise level was moderate but not objectionable – just noticeable.


Overall not for aggressive cooling – an OK heatsink for an OEM CPU for 4 pin systems.

Thanks again to nPowertek for sending this our way to test out.

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




About Joe Citarella 242 Articles
Joe Citarella was one of the founders of in 1998. He contributed as a site administrator and writer for over 10 years before retiring. Joe played an integral part in building and sustaining the community.


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