Intel P4 Aircooling - Heatsink Roundup Q1 2005

Cooling/CPU Cooling by jmke @ 2005-03-01

In part two of our roundup we compare 11 different P4 heatsinks made by Thermalright, Spire, Primecooler, Zalman, Evercool, Vantec and Titan. Using different fans at low and high speed we try to find the best bang for the buck, best performer and most silent HSF combo out there.

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Zalman CNPS7700-Cu

Zalman CNPS7700-Cu
7700 Supplied by: TweakFreaks
7000b Supplied by: CrazyCamel

Zalman needs no introduction, they have produced several popular, silent heatsinks in the past and today I have their latest creation on the test bed, a massive 900+gr block of copper with a 120mm fan fitted in the middle.

Specifications :

This heatsink can be installed on:

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The CNPS7700-Cu drops support for Socket A/462 but is compatible with the new Intel S775.

* A very large radial-fan equipped copper heatsink weighing in at 900+gr
* 120mm included (mounted inside, not easy to swap)
* FAN MATE2; fan controller which allows you to change the supplied fan voltage from 5v to 11v.

Full specifications at product's webpage.

In the Box

A big cooler requires a big box; the 7700 comes packaged with a multitude of mounting gear, a fan controller, a descriptive manual and tube of thermal paste

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Construction :

The heatsinks is a souped-up version of its older brother, larger and heavier, the base very smooth.

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CNPS7000b-CU on the left – CNPS7700-CU on the right

Installation :

Installation on S478 is the same as with the 7000b and uses the default Intel bracket; the whole process takes less then 5 minutes. However consider removing the heatsink when moving the case around as there is almost 1kg of copper sitting on your CPU.

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Performance and Noise :

For comparison I’ve add Thermalright’s XP-120 and Zalman’s own CNPS7000b-CU

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The extra-large Zalman offers excellent performance at low sound levels, bettering the CNPS-7000b-Cu in both High/Low speed occasions, it's not able to beat the heat pipe equipped XP-120 though and trails behind ~3°C. Zalman's advantage is its price point of $40 while the XP-120 costs $50+ without fan!
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