Heatsink Reviews and Analysis
TOP 5 Heat Sinks     TOP 5 Low Profile Heat Sinks     TOP 5 Liquid Coolers    
 Reviews + Articless     News     HSF Mfg's Index     Advanced Search    

Zalman CNPS9300AT Heatsink Review
Zalman CNPS9300AT Heatsink Review
Abstract: Zalman's CNPS9300AT heatsink is equipped with a stocky 92mm PWM fan that floats in the midst of a radial array of copper fins. Like the turbine on a Boeing 777's wing....

 Company link  Category  Published  Author 
Zalman   Cooling / Heatsinks   Sep 05, 2008   Max Page  
Home > Reviews > Page Title: 360° View - Zalman CNPS9300AT Heatsink

360° View - Zalman CNPS9300 AT Heatsink

Information on Frostytech's test methodology is available here.

The 25x92x92mm PWM fan on the Zalman CNPS9300AT heatsink spins at 1500-2400RPM depending on the temperature of the CPU and BIOS settings. Power is supplied by a 4-pin motherboard fan header that is backwards compatible with 3-pin fan headers. The heatsink stands 133mm tall, and 108mm wide at the top. From the base to about 35mm up there is a good degree of clearance for adjacent motherboard devices. The two copper heatpipes are 6mm in diameter, extending from the base up through the many 0.2mm thick copper fins in a figure-8 pattern.

The fan is suspended 80mm above the CPU at the center of the fins, the space directly behind the motor is left empty. The Zalman CNPS9300AT heatsink installs onto AMD/Intel processors with one of two stainless steel clips that fit over the nub of the cast aluminum base cap. Clamping forces are directed at the center of the heatsink's base for even loading on the CPU's integrated heat spreader. Each copper fin extends ~30mm from the center, and measures 0.2mm thick. Fin spacing is 2.0mm at the outside, 0.5mm along the inside. The copper fins are soldered to the 6mm diameter copper heatpipes.

The copper base of the Zalman CNPS9300AT heatsink measures 31x36mm in size, and about 3mm thick on average. The surface is highly polished, and the four heatpipe ends are soldered to it for improved thermal conductivity.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineers straight edge or proven flat surface, in two axis.

The base of the Zalman CNPS9300AT heatsink is perfectly flat in one axis, and very slightly convex in the opposite, mostly just over the dead center. The copper base itself has a glossy surface finish which is perfectly smooth. Surface roughness is at or better than ~8 microinches, which is excellent.

 Previous Page °
° Next Page 

Table of Contents:

 1:  Zalman CNPS9300AT Heatsink Review
 2: — 360° View - Zalman CNPS9300AT Heatsink
 3:  Acoustic Sample and Heatsink Sound Levels
 4:  AMD K8 Heatsink Temperature Comparisons
 5:  Intel LGA775 Heatsink Temperature Comparison

List all Zalman heat sinks that Frostytech tested?

Follow Frostytech on FacebookFrostytech News RSS FeedFollow frostytech on Twitter
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects

Noctua NH-L9x65 Low Profile Heatsink Review

Noctua NH-D9DXi4-3U LGA2011 Xeon Server/Workstation Heatsink Review

Scythe Fuma SCFM-1000 Heatsink

Scythe Ninja 4 SCNH-4000 Heatsink Review

DeepCool Maelstrom 240 Liquid Cooling System Review

DeepCool Gamer Storm Lucifer K2 Heatsink Review
...More Articles >>

Websites you may also like:

Google Search Frostytech

Time stamped: 10:52AM, 12.15.2018
In Case You Missed it...
°  water-cooled IGBT modules for EVs

°  Cooler Master MasterFan MF120R ARGB Fans Review

°  Arctic BioniX P fans in 120mm and 140mm

°  GELID Solutions Radiant – Extreme Performance RGB Fans

°  Notebook cooling solutions provider Anli sees bright prospects for 2019

°  Reeven Kiran Cooling Fan Review
Since June 1999

Find a Heatsink / RSS Feeds
Latest Heatsink Reviews
Top 5 Heatsinks Tested
News RSS Feed
Reviews RSS Feed

Social Media
Pinterest Info
Contact Us / Heatsink Submissions
Submit News
Suite 66
© Copyright 1999-2018 All Rights Reserved. Privacy policy and Terms of Use
Images © and may not be reproduced without express written permission.
Current students and faculty of accredited Universities may use Frostytech images in research papers and thesis, provided each image is attributed.