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Glacialtech F101 PWM Heatsink Review
Glacialtech F101 PWM Heatsink Review
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Abstract: The Glacialtech F101 PWM heatsink is built around a simple concept; use the space over the motherboard chipset for extra cooling fins.

 Company link  Category  Published  Author 
Glacialtech   Cooling / Heatsinks   Dec 31, 2009   Max Page  
Home > Reviews > Page Title: 360° View - Glacialtech F101 PWM Heatsink

360° View - Glacialtech F101 Heatsink


Information on Frostytech's test methodology is available here.

The 120mm PWM fan on Glacialtech's F101 PWM heatsink rotates at 1700RPM by default, as slow as 800RPM when the computer is idle. Power is supplied by a 4-pin PWM motherboard fan header. The F101 PWM heatsink stands 145mm tall, is 143mm at its widest. The extension adds about 35mm the width of the heatsink, but at a height to allow clearance over typically sized chipset thermal solutions on the motherboard.

Clearance below the 35mm wide fin extension (to the right) is 66mm to the CPU. From the back you can clearly see Glacialtech have left mounting points for a second 120mm fan to be installed. Though the second fan is not supplied, Glacialtech do include extra clips to hold one in place.

Each aluminum fin on the F101 PWM heatsink is 0.3mm thick and spaced 1.5mm apart. There is a 2mm plenum behind the fan. The entire heatsink stands 145mm tall, with 31mm clearance below the lowest fin.

Five 6mm diameter sintered-wick copper heatpipes pass through the aluminum fins. At the base the heatpipes are packed edge-to-edge to ensure good thermal transmission from the 2mm thick copper base plate. The base measures 38x50mm in size. I'd like to know who thought it was a good idea to stamp "GlacialTech.com" there.

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 chrome plated copper base of Glacialtech's F101 PWM heatsink is stamped out and attached with six machine screws to the upper baseblock of the heatsink. The surface roughness is ~8 microinches beyond the unnecessary and undesirable logo stamp. In terms of flatness the situation is good in both axis, generally very flat but not perfectly so.

Next up Frostytech measures the sound output from the Glacialtech F101 PWM heatsink with its fan running at full speed...



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Table of Contents:

 1:  Glacialtech F101 PWM Heatsink Review
 2: — 360° View - Glacialtech F101 PWM Heatsink
 3:  Acoustic Sample and Heatsink Sound Levels
 4:  AMD K8 Heatsink Temperature Comparisons
 5:  Intel LGA775 Heatsink Temperature Comparisons

List all Glacialtech heat sinks that Frostytech tested?

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