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Auras Shagon AHC-118 Lower Noise Heatsink Review
Auras Shagon AHC-118 Lower Noise Heatsink Review
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Abstract: In this review Frostytech is testing Auras' lower noise Shagon AHC-118 tower heatsink. This CPU cooler stands 178mm tall, with a footprint of 135mm x 119mm. Weighing in at 951grams, this is one big heatsink.

 Manufacturer  Category  Published  Author 
Auras   Cooling / Heatsinks   Nov 04, 2011   Max Page  

Home > Reviews > Page: 360° View - Auras Shagon AHC-118 Heatsink

360° View - Auras Shagon AHC-118 Heatsink


Information on Frostytech's test methodology is available here.

Auras' Shagon AHC-118 heatsink stands 178mm tall, 135mm wide and 119mm deep - it's a big heatsink. The 120mm PWM fan spins at 1800-1000RPM and draws power from a standard 4-pin PWM motherboard fan header. Six 6mm diameter copper heatpipes extend from the base up to the top of the 120mm tall aluminum fin stack. Each aluminum fin measures 0.3mm thick and is spaced a rather wide 2.5mm apart.

The bottom-most aluminum cooling fin is elevated 40mm above the CPU socket for clearance. Heat pipes are positioned 7mm on center at the base plate and rise up 91mm, 74mm and 54mm apart. The base incorporates an 8.5mm thick aluminum section to provide support for the swaged heatpipes and mounting brackets.

The usable area of the Auras Shagon AHC-118 heatsink base is 45x54mm. Looking from the top down, the fan plenum is ~10mm. The six 6mm diameter copper heatpipes are positioned towards the outter edges of the fin stack where airflow from the fan is strongest.

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 exposed heatpipe base of the Auras Shagon AHC-118 heatsink has a smooth sanded surface texture. Surface roughness is approximately 16 microinches. The base is generally flat in the axis parallel to the direction of the heatpipes but slightly uneven in the opposite axis. The unevenness is due to an exposed heatpipe having dislodged from the swaged aluminum socket just ever so slightly.

Next up, Frostytech heatsink sound level measurements...

 Previous Page ° ° Next Page 

Table of Contents:

 1:  Auras Shagon AHC-118 Lower Noise Heatsink Review
 2: — 360° View - Auras Shagon AHC-118 Heatsink
 3:  Heatsink Sound Level Comparison
 4:  AMD Heatsink Temperature Comparisons
 5:  Intel Heatsink Temperature Comparisons

List all Auras heat sinks that Frostytech tested?

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