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Apack Zerotherm BTF-92 OC Edition Heatsink Review
Apack Zerotherm BTF-92 OC Edition Heatsink Review
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Abstract: Apack's BTF92 OC ed. heatsink features a free-floating UFO-bearing 92mm fan spinning at 2300RPM by default. The included fan speed controller can bring impeller speeds down to 1000RPM if desired.

 Company link  Category  Published  Author 
Apack   Cooling / Heatsinks   Nov 30, 2007   Max Page  
Home > Reviews > Page Title: 360° View - Apack Zerotherm BTF92 OC ed. Heatsink

360° View - Apack Zerotherm BTF-92 OC Edition Heatsink
Information on Frostytech's test methodology is available here.

The Heatsink Fan:
The 92x92x25mm fan spins at 1000-2300RPM with the provided manual fan speed controller. Default speed is 2300RPM. A standard 3-pin motherboard header provides power. The lack of any fan guard presents a challenge for systems with many loose wires dangling around inside the case. The Apack Zerotherm BTF92 OC ed. heatsink stands 130mm tall. The seven bladed fan is internally illuminated with two blue LEDs, and is removable from the heatsink by sliding it up and out of the red frame where it's attached to the copper fins.

Heatsink Top:
From the top, the Zerotherm BTF92 OC ed. heatsink resembles a Mothra-like butterfly. The copper fins are internally split down the center so in effect there are two separate towers. Four 6mm heatpipes are used in this heatsink, each being bent around so in effect there are eight heatpipes weaving through the copper fins. The fan can be quickly removed by pulling up on the triangular piece of red plastic.

Heatsink Side A:
The Zerotherm BTF92 OC ed. heatsink stands 130mm tall. The copper fins are 0.15mm thick and spaced 1.75mm apart. The heatpipes are soldered to the copper base plate for reduced thermal joint resistance. The cast aluminum base cap is swagged in place, it's job is to transfer the load from the clamping frame evenly.

Heatsink Side B:
From the rear, the copper fins of the Apack Zerotherm BTF92 OC ed. heatsink are spaced about 1.8mm apart. The heatpipes are soldered to a 4mm thick copper base plate. The heatsink is about 108mm wide.

Heatsink Base:
The copper base on the Zerotherm BTF92 OC ed. heatsink is 36mm x 48mm in size and soldered to the heat pipes. The base has a polished finish and is very flat. The surface roughness is at or better than ~8 microinches, which is considered excellent. Note the screw holes in the die-case aluminum base cap where the Intel/AMD mounting clip is attached.



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Table of Contents:

 1:  Apack Zerotherm BTF-92 OC Edition Heatsink Review
 2: — 360° View - Apack Zerotherm BTF92 OC ed. Heatsink
 3:  Acoustic Comparisons and Base Surface Quality
 4:  Intel LGA775 Final Heatsink Temperature Comparisons
 5:  Intel LGA775 Final Heatsink Temperature Comparisons

List all Apack heat sinks that Frostytech tested?

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