Thermalright 120 Ultra Extreme return or lap?

helmutcheese said:
I posted this elsewhere and stand by it.:

TR are talking BS.

They cant make it concave very easy on purpose, and if they did it would be uniformed across all made.

It aint, some are concave, some are convex, all in different areas of base.

It is cause they solder the Pipes and it buckles the base, they should machine the base after Pipes are soldered.
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We went over this in this thread.
Looks like a lot of tension built up in that.

I missed that...

fornowagain
Occupation:
Engineer

My ultra came with a convex base, sounds good. It wasn't. The convex area was saddle shaped and only convex over half the core area. Its not deliberate, the surface area has the typical surface marks from machining. There is no simple way to 'machine' an accurate massive convex radius. It's easy enough to create with deflection, like the seals on water blocks. The reason the Ultra is distorted is far simpler, no heat treatment. They've soldered the heatpipes to the base without stress relieving the bases after general machining, the metal moves.


Thats 3 of us them
 
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There is no way it can be "designed" that way. Fair enough some IHS' come with a dip in the middle. The thing is these will all be different and there fore the curvature on the bottom on the HSF will never match the exact shape on the CPU. Its like saying one instep on a show fits everybody. It might be the right general shape, but unless your REALLY lucky it will just make it worse.

- Pea0n
 
I'm an engineer as well, working with robotic machining and composite tooling at the minute...I think Fornowagain was exactly correct in his analysis. This isn't crap quality control, this is down to a crap manufacturing process.

Ironic that the manufacturers of premium heatsinks have botched jobs because they haven't heatsunk correctly!
 
SillyHeatsink said:
I'm an engineer as well...they haven't heatsunk correctly!
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As a retired Professional Engineer I can't recall coming across the word 'heatsunk'.

Is that some sort of shorthand for not correctly manufacturing heatsinks.

We do seem to have rather a lot of Engineers about these days.
 
Terrible manufacturing that. I had one but sold it. I now have a Thermalright SI-128 SE. Awesome is the only word to use!! Idle temps are around 24 - 25. AMD AM2 CPU (6000).
 
Marse said:
As a retired Professional Engineer I can't recall coming across the word 'heatsunk'.

Is that some sort of shorthand for not correctly manufacturing heatsinks.

We do seem to have rather a lot of Engineers about these days.
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I've always used heatsunk as a past tense verb, here's it in a sentence: 'The component was heatsunk during soldering to prevent warping.'

I meant that the people who manufactured the heatsink didn't heatsink it during soldering; the heat from the soldering process was not dissipated and the metal warped. Course, this is just a wild guess. Could be they cast and/or milled it incorrectly as well.

Whatever the case...send the bleedin' thing back!
 
My TRUE just shipped and I just had a quick check for flatness of base and its basically the same as the OP's. Convex base where the sides fall away from a hump in the middle. I'm lapping mine.
 
pendulum666 said:
My TRUE just shipped and I just had a quick check for flatness of base and its basically the same as the OP's. Convex base where the sides fall away from a hump in the middle. I'm lapping mine.
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I lapped mine and it made about a 3c difference...woop. :mad:
 
I haven't lapped mine yet, what I did do was mount the True120 with the flat side oriented the same way as the cores run in my Q6600. It still out performs my TuniQ 120 by about 3 degrees. Very quiet also with the same Tuniq 120 fan.
as5_quadc.jpg
 
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