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nPowertek TTIC NPH K8-1 Heatsink Review
nPowertek TTIC NPH K8-1 Heatsink Review
  76%   
Abstract: NPH K8-1 Socket 939 heatsink looks deceptively simple at first glance; but at the heart of this socket 754/939/940 Athlon64 heatsink is a huge copper cylinder.

 Manufacturer  Category  Published  Author 
npowertek   Cooling / Heatsinks   May 17, 2006   Max Page  

Home > Reviews > Page: 360° View - nPowertek NPH K8-1 Heatsink Review

360° View - nPowerTek NPH K8-1 Heatsink
Information on Frostytech's test methodology is available here.
The Heatsink Fan:
Looking at the top of the heatsink we can see the 25mm diameter heat column popping out. The anodized aluminum fan shroud is constructed with 1mm thick aluminum sheet metal to holds the 80mm fan in place.

Heatsink Top:
From this angle we can get a better view of how the 80mm fan is positioned with respect to the heat column. Since the sides of the nPowertek NPH K8-1 heatsink are open, air can move in and out of the unit as pressure dictates. The lower 25mm height of the column is free of fins to provide clearance for the clip and mounting hardware. The copper fins are 0.2mm thick and spaced about 1.5mm apart.

Heatsink Side A:
The 80mm fan intakes air, and blows it across the copper fins and heat column. Since the sides of the heatsink are left open, there should be little problem with back pressure.

Heatsink Side B:
The nPowertek NPH K8-1 heatsink uses some captive screws in the base plate to screw into a special metal motherboard support plate when used with socket 478 motherboards. For this you'll first have to remove the motherboard, take off the standard Intel Heatsink retention frame, and then install the heatsink and its custom metal support plate. This makes installation rather cumbersome for Pentium 4 processors. The Athlon 64 hardware works with existing K8 retention plates.

Heatsink Base:
The 31mm copper base makes direct contact with the processor, so thermal resistance between the two is minimized. The base of the copper is very flat, and consists of a 5mm thick disk of metal. The metal frame of the heatsink is attached directly to the base of the central copper column, so the 600+ gram weight is held fast. The base surface roughness is equivalent to about 16 microinches.


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Table of Contents:

 1:  nPowertek TTIC NPH K8-1 Heatsink Review
 2: — 360° View - nPowertek NPH K8-1 Heatsink Review
 3:  Surface Roughness and Acoustic Comparisons
 4:  Final Heatsink Temperature Comparisons

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