IC Perihelion, Noctua NT-H1, and OCZ Freeze Review

Specific TIM Results

Let’s first isolate the data into groupings of an individual TIMs and look at the specific mount data.  For reference, the dashed line is the discarded mount and is not included in any of the averages.

IC Perihelion

IC Perihelion - Poor Contact - Graph IC Perihelion - Moderate Contact - Graph IC Perihelion - Great Contact - Graph

IC Perihelion has so little response, visually, to contact that it’s a serious concern.  The Great Contact contact image used here was the only one of fifteen mounts that looked different; it was also the best mount of the fifteen. As for the cure, it seems to get noticeably worse as time goes on with Poor and Moderate Contact, which is a concern (when does it stop? there is no theoretical limit to performance degradation).

Noctua NT-H1

Noctua NT-H1 responds very well visually.  It does, however, have a noticeable amount of cure overall.

OCZ Freeze

OCZ Freeze does not have much visual response, only barely thinning as contact improves.  It does not have much of a cure

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Comments

Posted On
Aug 11, 2011
Posted By
il0
Posted On
Aug 11, 2011
Posted By
Eric (Vapor) Hassett

The Coollaboratory liquid metal TIMs and IC Diamond will be tested at the very, very end of this testbed’s life. They’re too likely to permanently alter the surface to be done mid-stream (if they do alter the block/IHS surfaces, they skew performance and it would be best if the number of TIMs affected were minimized).

EVGA Frostbite is upcoming after this batch of Shin-Etsu G751, X23-7762, and X23-7783D. I’ve already done some preliminary tests with it on another testbed and it seems very similar to Nexus TMP-1000, which is not a positive sign.

I think it’s unlikely that thermal pads will be fully explored, at least with this testbed and procedure.

Posted On
Sep 11, 2011
Posted By
il0

i know thermal pads generally suck but i was curious how/if there have been any improvements over the years 😛

Posted On
Jul 28, 2011
Posted By
Church

Hmm, interesting. New shin-etsu versions? Somehow this is first place i noticed X23-7921-5 and X23-7868-2D mentioned. After quick googling X23-7868-2D seems what’s coming OEM with antec integrated LC sys (and as OEM TIM for few other coolers), with a bit improved heat transfer of 6.2 W/mK vs 6.0 for X23-7783D, and X23-7921-5 maybe even better then that. Pity these two new ones seem selling retail only in Japan.

Posted On
Jul 28, 2011
Posted By
Eric (Vapor) Hassett

Yeah, hopefully 7921-5 and 7868-2D get to retail before this is all finished…still 4-7 months away from closing down the testbed and testing ICD and CLP/CLU, so there’s time.

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