Heatsink Reviews and Analysis

TOP 5 Heat Sinks     TOP 5 Low Profile Heat Sinks     TOP 5 Liquid Coolers    
 Heatsinks by Brand / Mfgr      Reviews + Articless     Advanced Search    

Thermalright CB-6L Heatsink Review
Thermalright CB-6L Heatsink Review
Abstract: Thermalright broke all the cooling barriers with the introduction of their full-copper SK-6 heatsink and many people expected the CB-6L to follow in the same footsteps.

 Manufacturer  Category  Published  Author 
Thermalright   Cooling / Heatsinks   Oct 02, 2001   Max Page  
Thermalright CB-6L Heatsink Review

Thermalright broke all the cooling barriers with the introduction of their full-copper SK-6 heatsink and many people expected the CB-6L to follow in the same footsteps. The difference this time around is that the CB-6L is only partially copper, and more importantly, doesn't employ highly efficient thin-fin construction.

Rather we are faced with a typical aluminum legacy extrusion which has seen some upgrades in an attempt to improve its's overall performance characteristics. The additions include plating the entire heatsink so that a 2mm thick copper base plate can be affixed to the base via solder. Other manufacturers have attempted similar upgrades to existing extrusions by mechanically attachments or thermal adhesives - usually with less than ideal results.

Will the CB-6L be the one technology to shine on? The answer is possibly, but since we are now in the times of high performance fans and full copper thermal solutions it will have stiff competition to face up against.

Heatsink Specsheet:
  • Model: CB-6L
  • Fan: Sunon (motor one), 4800RPM, 19CFM, 12V, 0.2A, vapour bearing system.
  • Fan Dim: 10x60x60mm
  • Heatsink Dim: 40x75x64mm
  • HS Material: Extruded aluminum (plated), Copper baseplate
  • weight: 225 grams
  • Mfg by: Thermalright
  • Cost: ~$25-$30

Sold By: Thermalright
Heatsink Audio Sample Included. Intended for use on Socket 370/A processors.

More on the CB-6L:

There seems to be an active movement by some manufacturers to tag copper heatspreaders onto the base of existing aluminum extrusion design heatsinks. As if to extend the lifespan of their expensive extrusion dies, all manner of attachment methods have been attempted to get the copper to stick to the aluminum.

Under normal circumstances you can't solder copper to aluminum, so some companies have resorted to bolting on plates, gluing them with thermal epoxy, or in the case of Thermalright, soldering. Of the three methods we mentioned solder is apt to be the best form of thermal joint. The problem is that aluminum isn't that receptive to soldering attempts, so a another coating of a more workable metal is needed.

In this case the aluminum extrusion has been plated with a metal that enables the manufacturers to solder the 2mm thick copper plate to the base of the CB-6L, hopefully improving the overall performance of an otherwise standard aluminum extrusion.

° Next Page 

Table of Contents:

 1: — Thermalright CB-6L Heatsink Review
 2:  Looking at the heatsink from all angles
 3:  Heatsink Test Apparatus - Acoustic, Thermal
 4:  Thermal Test Results, Acoustic Sample
 5:  Conclusions on the CB-6L

List all Thermalright heat sinks that Frostytech tested?

Facebook RSS Feed Twitter
° Got Feedback?
° Mk.II Test Platform
° Where To Buy?
° Manufacturer Index
° Industry Dir.
° Cooling Projects
Recently Tested

Scythe Mugen 5 Rev B SCMG-5100 Heatsink Review

Gelid Tranquillo 4 Air Cooled Heatsink Review

Coolermaster Ergostand III Laptop Cooling Stand Review

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

Noctua NH-L9x65 Low Profile Heatsink Review

Scythe Fuma SCFM-1000 Heatsink
...More Articles >>

Websites you may also like:
Since June 1999

Find a Heatsink
Latest Heatsink Reviews
Top 5 Heatsinks Tested
Top 5 Low Profile Heatsinks
Top 5 Liquid Coolers
Heatsinks by Mfgr / Brand

Social Media
Pinterest Info
Contact Us / Heatsink Submissions
Submit News
Privacy Policy
Suite 66

© Copyright 1999-2023 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.