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SilenX EFZ-100HA1 Heatsink Review
SilenX EFZ-100HA1 Heatsink Review
  72%   
Abstract: In this review Frostytech will be testing out one of the latest hopefuls, the SilenX EFZ-100HA1 heatsink. This low profile cooler is a complex little bundle of heatpipes and fins, and stands only 67mm tall.

 Company link  Category  Published  Author 
SilenX   Cooling / Heatsinks   Sep 15, 2010   Max Page  
Home > Reviews > Page Title: 360° View - SilenX EFZ-100HA1 Heatsink Review

360° View - SilenX EFZ-100HA1 Heatsink


Information on Frostytech's test methodology is available here.

The 100mm fan spins at 2000-1000RPM and draws power from a standard 3-pin motherboard fan header. The fan is held on by four rubber vibration absorbing posts. Three 6mm diameter copper heatpipes rise up through bare aluminum fins which have a dimpled surface texture. Each aluminum fin measures 0.3mm thick and is spaced 2.0mm apart. The surface texturing on each fin consists of a very small dimple popping out on both sides of the metal.

The SilenX EFZ-100HA1 heatsink stands 67mm tall, the bottom-most fin is 32mm above the CPU socket for clearance. The three heatpipes are positioned side to side at the base, then mesh through the aluminum fins in a 2:1 ratio on each side. The base incorporates a 9mm thick aluminum section to provide support for clamping. A small extruded aluminum fin segment is incorporated into the base.

Looking at the bottom of the SilenX heatsink we see the exposed heatpipes and smoothly machined base. The base measures 38x44mm in size.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineers straight edge or proven flat surface, in two axis.

The SilenX EFZ-100HA1 heatsink has a surface roughness of approximately 16 microinches, which is considered very good. The base is machined perfectly flat in both axis, with a slight grooved finish from the tooling. The copper and aluminum parts are flush.

Sound level measurements are coming right up next.



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Table of Contents:

 1:  SilenX EFZ-100HA1 Heatsink Review
 2: — 360° View - SilenX EFZ-100HA1 Heatsink Review
 3:  Sound Level Measurements: Which Heatsink is Quietest?
 4:  AMD K8 Heatsink Temperature Comparisons
 5:  Intel Heatsink Temperature Comparisons

List all SilenX heat sinks that Frostytech tested?

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