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Glacialtech Igloo H46 Heatsink Review
Glacialtech Igloo H46 Heatsink Review
  84%   
Abstract: On the test bench today is Glacialtech's Igloo H46 heatsink - a tower style exposed heatpipe base CPU cooler that marks one of the best efforts for this Taiwanese thermal solutions manufacturer to date. The heatsink cools very well on both Intel and AMD platforms, as you'll shortly see.

 Company link  Category  Published  Author 
Glacialtech   Cooling / Heatsinks   Nov 11, 2011   Max Page  


On the test bench today is Glacialtech's Igloo H46 heatsink - a tower style exposed heatpipe base CPU cooler that marks one of the best efforts for this Taiwanese thermal solutions manufacturer to date. The heatsink cools very well on both Intel and AMD platforms, as you'll shortly see.

The aluminum fins on this narrow tower heatsink are 0.2mm thick, the reduced profile allows air to pass more easily through the fin stack and consequently the Igloo H46 heatsink is pretty quiet at full fan speed. In Frostytech's real world sound measurements, the Glacialtech Igloo H46 heatsink puts out between 44.8-32.2 dBA, in other words, it is classed as lower noise to whisper quiet.

Standing 158mm tall, the Glacialtech Igloo H46 heatsink ships with one 120mm PWM fan but is capable of accommodating a second rear-mounted fan (clips provided) should users wish to operate two fans at reduced speed and decrease fan noise overall. The Igloo H46's bright yellow fan impeller spins at 1600-800RPM.

Weighing in at 560 grams, the Glacialtech Igloo H46 heatsink installs onto Intel socket 775/1155/1156/1366 and AMD socket AM2/AM3/FM1 processors. Retail price is estimated at $34 through the usual heat sink retailers.

Glacialtech Igloo H46 Heatsink
HEATSINK SPECSHEET
Manufacturer: Glacialtech
Model No.: Igloo H46
Materials: aluminum fins, nickel plated copper heatpipes, exposed heatpipe base
Fan Mfg: Glacialtech JT12025L12S009A
Fan Spec: 1600-800RPM, 12V, 0.28A
Fan Airflow: 65CFM
Fan Dim: 25x120x120mm
Heatsink & Fan Dim: 158x130x78mm
Weight: 560 grams
Includes: Multi-socket socket mounting hardware, thermal compound, instructions

Compatible with Sockets:
AMD - AM2/AM3/FM1
Intel - LGA775/1155/1156/1366
Pricing: $34USD ($34CDN)

Exposed heatpipe base heatsinks are pretty common these days, but not every CPU cooler that has them is made properly. Frostytech is by no means an expert in this regard, but we have seen our fair share of exposed heatpipe base heatsinks that failed for one reason or another.

You see, manufacturing an exposed heatpipe base heatsink is trickier than it first appears. Most of us see four copper tubes in four channels, that seems pretty simple to make... However, the heatsink maker has to; 1) keep the flat plane of the heatpipes even with one another. 2) Keep the heatpipes attached to the aluminum mounting plate. 3) Flatten the heatpipes in just the right way so as not to damage the internal wick structure. 4) Finish the heatsink base by skimming a hair of copper off the bottom to provide a good CPU mounting surface. 5) And lastly, it has to choose just the right channel profile (circle, oval, egg-shape, flattened circle, flattened oval, etc.) to swage the heatpipes into the aluminum so nothing shifts around after repeated heating and cooling cycles.

The thin aluminum base cap the heatsink's mounting brackets attach to is just 26mm wide where it sits on the processor. If I understand what's going on in the designers mind correctly, it's a very clever solution... sharp bends you see, are not a heatpipes friend. ;)

Heatsink Mounting Hardware

The Glacialtech Igloo H46 heatsink ships with one rear motherboard support bracket that fits every CPU socket configuration imaginable. Separate metal brackets are provided for Intel or AMD platforms. Glacialtech have finally improved the quality of its mounting hardware; the brackets are much thicker metal and sturdier than past Glacialtech heatsinks, definitely a welcome sight!

The Intel socket 775/1155/1156/1366 mounting bracket accommodates the full gamut of Intel processors. It screws onto the motherboard with collared screws.

For AMD motherboards, Glacialtech use metal brackets which accommodate AMD socket AM2/AM3/FM1 processors. These screw into the common motherboard support plate supplied with the heatsink.

The instruction manual is clear and easy to understand. You will need access to the rear of the motherboard to install this heatsink, we'd recommend taking the board out of the case for easier access. Four wire fan mounting clips are supplied along with a tube of Glacialtech IceTherm II thermal interface material.

FrostyTech's Test Methodologies are outlined in detail here if you care to know what equipment is used, and the parameters under which the tests are conducted. Now let's move forward and take a closer look at this heatsink, its acoustic characteristics, and of course its performance in the thermal tests!


° Next Page 

Table of Contents:

 1: — Glacialtech Igloo H46 Heatsink Review
 2:  360° View - Glacialtech Igloo H46 Heatsink
 3:  Sound Level Measurements: Which Heatsink is Quietest?
 4:  AMD Heatsink Temperature Comparisons
 5:  Intel Heatsink Temperature Comparisons

List all Glacialtech heat sinks that Frostytech tested?

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