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Apack ZeroTherm BTF90 Copper Heatsink Review
Apack ZeroTherm BTF90 Copper Heatsink Review
Overall Rating:   84%
Abstract: The 678 gram Zerotherm BTF90 is an all copper heatsink which is designed to function with socket 775 Intel Pentium D/Core 2 Duo, and socket 754/939/940/AM2 AMD Athlon64 processors.

 Company link     Category     Published     Author    
APack   $$ Price It! ££ Cooling / Heatsinks   Jul 24, 2006   Max Page  

Apack is a Korean manufacturer of thermal solutions whose main product lines focus on heat pipe technology, vapor chambers and micro electro mechanical systems (MEMS). This is the first time FrostyTech has looked into Apack's consumer-grade heatsinks, but it's evident that the company has been heavily involved in the OEM industry for the past several years; both in notebook thermal solutions and high density server processor cooling.

The Apack Zerotherm BTF90 and BTF80 heatsinks are the companies' first consumer class heatsinks for the AM2 platform, and in spite of the kitschy 'butterfly' shaped cooling fins the BTF90 is surprisingly effective. The 678 gram Zerotherm BTF90 is an all copper heatsink which is designed to function with socket 775 Intel Pentium D/Core 2 Duo, and socket 754/939/940/AM2 AMD Athlon64 processors. Socket 478 CPUs are not supported. The cooler is rated for loads of up to 150W.

The heatsinks' 92mm PWM fan is internally illuminated with a pair of red LEDs that bounces off the translucent blades in a pleasing manner. The Zerotherm BTF90 heatsink stands nearly 125mm high, but is only slightly wider than the socket AM2/939 retention frame. The fan spins at 2500RPM and includes Pulse Width Modulation (4-pin PWM) speed control, a feature that is being adopted by motherboard manufacturers for both Intel and AMD platforms. Fan noise is moderate at most, so the Zerotherm BTF90 is fairly unobtrusive under power.

Apack Zerotherm BTF90 Heatsink
Manufacturer: Apack
Model No.: ZeroTherm BFT90
Materials: Copper fins, base, heatpipes.
Fan Mfg: SFC9225LU-12P
Fan Spec: 750-2500RPM, 12V, 0.13A
Fan Dim: 25x92x92mm
Heatsink & Fan Dim: 126x109x80mm
Weight: 678 grams
Includes: Mounting clips, thermal compound

Compatible with Sockets: 754/939/940/AM2 & 775
Est. Pricing: $50USD ($55CDN)

RoHS compliance is noted on the side of the packaging, a crucial change for all consumer electronics since the July 1st implementation of this European mandate came into effect. A set of four 6mm copper sintered heatpipes twist their way through the stack of cooling fins, and connect the copper base to the rest of the unit. Solder is used to bond the heatpipes to the base section, so we can only assume a lead-free solder has been used.

One Clip, Four K8 Processor Sockets

The Apack Zerotherm BTF90 heatsink comes with two sets of clips for attaching to either socket 775 or socket 754/939/940/AM2 processors. Depending on the specific computer architecture, one clip or the other is attached to the die-cast aluminum base of the BTF90 heatsink with four screws before it can be used.

The socket 775 clip uses four spring tensioned captive screws and a motherboard support bracket that requires users to remove the motherboard from the computer before installation. An adhesive on the support bracket holds it in place once installed behind the 775-pin socket.

The AMD heatsink bracket will work with both socket AM2 and socket 754/939/940 retention frames, it uses the center tab to clip in place. The clip is a bit stiff to disengage, but installs in a snap. The plus side to both clips is they can be oriented in any direction, allowing users to install the Apack Zerotherm BTF90 heatsink so warm air is exhausted towards the rear of the computer chassis.

FrostyTech's K8 Test Methodology is 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 it performance in the thermal tests!

° Next Page 

Article Contents:
 Page 1:  — Apack ZeroTherm BTF90 Copper Heatsink Review
 Page 2:  360° View - Apack ZeroTherm BTF90 Heatsink
 Page 3:  Acoustic Comparisons and Base Surface Quality
 Page 4:  Final Heatsink Temperature Comparisons

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