Heatsink Roundup Q4 2005 Holiday Edition

Cooling/CPU Cooling by jmke @ 2005-12-24

We are proud to present you with our last heatsink roundup of 2005. Featuring the latest offerings from Arctic, Scythe, Silverstone, Sharkoon and newcomer Noctua. We compare them to the best out there in 3 different test setups.

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Freezer 64 Pro: Specs/Box

Arctic Cooling Freezer 64 Pro:
Supplied by: Arctic Cooling

Arctic Cooling introduces an improved Freezer 64, the Pro version adds a larger fan, more heatpipes and it’s a bit larger then its predecessor.

It can be found priced at €15~20!

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Specifications :

  • AMD: Athlon64/64+ Socket754/940/939

    Fan included: 100mm custom design
    Fan Speed: 2200rpm
    Air Flow: 40CFM

    Freezer 64
    Heatsink + Fan Dimensions: 92x114x120mm
    Weight: 460gram

    Freezer 64 Pro
    Heatsink + Fan Dimensions: 107x96.5x126.5mm
    Weight: 528gram

    In the Box :

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  • A case badge
  • Step by step manual
  • there’s no tube of thermal paste included but their MX-1 comes pre-applied on the base

    Construction :

    The Freezer 64 Pro resembles the “none Pro” version closely, but the larger width and 3rd heat pipe give it away. The 3 U formed heatpipes are joined in a copper base, a series of aluminum fins dissipate the heat, the bottom rows of fins are further spread out to allow air to pass more easily, as the other side of these fins is bend downwards to guide air towards components around the CPU socket.

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    The base comes with pre-applied MX-1 paste which performs on par with the best out there. And is actually the best mating partner of the base.

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    As you can see in the photo below there are grooves from the CNC machine visible, the MX-1 paste allows for these grooves to fill up effectively and thus guarantee good thermal performance. I’ve swapped MX-1 and Arctic Lumiere but could not found any difference after 1 day of stress testing, the MX-1 however needs several days to “settle”, so in the end, you’ll be better of the with pre-applied thermal paste Arctic Cooling supplies.

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    This is what Magnus Huber from AC has to say about the base and the MX-1 paste:

    Important is that grease and surface roughness should correspond. We guarantee an absolutely flat surface by a CNC cut. This leaves grooves on the surface. For the thermal paste there is a basic rule: the higher the viscosity, the higher the thermal conductivity. The problem, higher viscosity also makes it more difficult to squeeze the grease and make sure that there is no air in-between the cooler and the CPU anymore. The film thickness of a viscous paste is therefore higher and this lowers the performance. Our job is it now to achieve a thin paste film with a very viscous thermal compound. Grooves help to do this job. So our grooved cooler surface works perfectly with a thermal compound with high viscosity and bad with a compound with low viscosity. If we would make a mirrored surface, it would work better in combination with a thermal compound with low viscosity.

    The fan mounting method is one the best I’ve encountered, the plastic fan bracket clips on to the aluminum fins, the fan itself is decoupled from the frame by an ingenious system which effectively reduces vibration noises. The fan cable is sleeved and sufficiency long.

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    Installation next ->
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