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GlacialTech UFO V51 Silent Heatsink Review
GlacialTech UFO V51 Silent Heatsink Review
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Abstract: At it's core, Glacialtech have equipped the 136mm tall UFO V51 Silent heatsink with two 1600RPM fans surrounding a large aluminum fin array, and framed in by a plastic casing that acts like a shroud to duct air through it. The heatsink weighs 780grams and is compatible with both Intel socket 775, 1366 and the entire family of AMD socket 939/AM3 processors.

 Company link  Category  Published  Author 
Glacialtech   Cooling / Heatsinks   May 20, 2009   Max Page  
Home > Reviews > Page Title: 360° View - GlacialTech UFO V51 Silent Heatsink

360° View - GlacialTech UFO V51 Silent Heatsink


Information on Frostytech's test methodology is available here.

The twin 92mm fans on the GlacialTech UFO V51 Silent heatsink spin at 1600RPM each, and a single 3-pin motherboard header provides power to both. With the fans and bulky plastic shroud removed we get a better look at the working end of the UFO V51 Silent heatsink. Two 6mm diameter heatpipes on the outer ends, two 8mm diameter heatpipes at the center. The aluminum fins are scalloped on both leading and trailing edges and measure 0.2mm thick. Fins are spaced ~2.0mm apart.

The GlacialTech UFO V51 Silent stands 136mm tall and is 165mm wide. Its raw aluminum fins are press-fit over the four nickel plated copper heatpipes. The bottom of the heatsink is elevated 45mm above the base for adequate motherboard component clearance. The copper heat spreader that caps off the heatpipes is 2mm thick.

The copper base plate on the GlacialTech UFO V51 Silent heatsink is nickel plated and polished, it is generally flat in both axis. The footprint is 50x48mm, with the two 8mm diameter heatpipes soldered towards the center and the 6mm diameter heatpipes positioned towards the outer edges where there is generally less heat (given the size of an Intel IHS being 28x28mm). The slot through the top of the aluminum base cap is for the mounting bracket Glacialtech supply.

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 GlacialTech UFO V51 Silent heatsink has a 2mm thick, nickel plated copper base with a surface roughness of approximately ~8 microinches. The base is generally flat in both axis, but not perfectly so.



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Table of Contents:

 1:  GlacialTech UFO V51 Silent Heatsink Review
 2: — 360° View - GlacialTech UFO V51 Silent Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  AMD K8 Heatsink Temperature Comparisons
 5:  Intel LGA775 Final Heatsink Temperature Comparisons

List all Glacialtech heat sinks that Frostytech tested?

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