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Arctic Cooling Freezer 64 LP Heatsink Review
Arctic Cooling Freezer 64 LP Heatsink Review
Abstract: The Arctic Cooling Freezer 64 LP is a low profile AMD Athlon64 heatsink for media centers, or any situation where the compact size of the computer case limits the vertical profile of the thermal solution.

 Manufacturer  Category  Published  Author 
Arctic Cooling   Cooling / Heatsinks   Mar 05, 2007   Max Page  

Home > Reviews > Page: 360° View - Arctic Cooling Freezer 64 LP Heatsink

360° View - Arctic Cooling Freezer 64 LP Heatsink
Information on Frostytech's test methodology is available here.

The Heatsink Fan:
There are two small 15mm deep, 60mm round fans on either side of the Arctic Cooling Freezer 64 LP heatsink. Each fan spins at 3000RPM, and draws power though a single 3-pin motherboard fan header (RPM signal is supported). The fans operate quietly. Each is removed from the heatsink frame so the screws which hold it onto socket 939 processors may be installed. The fan and shroud are one piece, and clip in place securely so vibration is not an issue.

Heatsink Top Uncovered:
From the top we can see how two 77mm wide aluminum heatsinks come together to form one whole K8 heatsink. Each half of the extruded aluminum cooler is soldered to the copper heat pipe, leaving 4mm of space between. The solder joint is strong enough that the Arctic Cooling Freezer 64 LP heatsink should last for many years without experiencing a delamination problem.

Heatsink Side A:
Here we have a better view of how the Arctic Cooling Freezer 64 LP heatsink is constructed. The aluminum fins are 1.0mm thick, and spaced 1.7mm apart. The entire heatsink stands less than 65mm tall, making it a real low profile alternative. There are three 6mm diameter heatpipes in this unit, each is squished down to a flat 4mm thick section where the halves are soldered together. The heatpipes join the copper base block to the rest of the heatsink.

Heatsink Side B:
The Arctic Cooling fans are suspected on two posts alone, and hover just about the nickel plated aluminum heatsink extrusions. The power cords from each fan combine to the heatsink only requires on power connection. The base of each aluminum heatsink is only 3mm thick, the fins standing 30mm tall. The Arctic Cooling Freezer 64 LP heatsink is held on the CPU socket by screws which thread through either aluminum support at the base, making for a very simple installation procedure.

Heatsink Base:
The copper base of the Arctic Cooling Freezer 64 LP heatsink measures 36x36mm, and is about 5mm thick The copper block is soldered to the heatpipes and nickel plated aluminum heatsink extrusions. Unfortunately, when examined with an engineers straight edge, the base was discovered to be significantly concave in both axis, although the surface itself was quite smooth. Surface roughness is on the order of ~8 microinches, which is considered excellent. The unevenness of the copper base essentially meant that only the four outer corners, and edges where the heat pipes emerged were making contact with the CPU test die.

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Table of Contents:

 1:  Arctic Cooling Freezer 64 LP Heatsink Review
 2: — 360° View - Arctic Cooling Freezer 64 LP Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  AMD K8 Heatsink Temperature Comparisons

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