fanless spinning heatsink

there was another topic about this sandia device the other day, but this seems a newer document, could need topic merging
 
That motor whine is dreadful, and i'm not entirely confident that a cover would make all that difference.
A ) I want to hear that thing as it's ready to be sold
B ) Where's the heatsink testing results at? You can't market something to be 30x more efficient than standard heatsinks and not give any results! :P
 
Captain Banana Pants said:
That motor whine is dreadful, and i'm not entirely confident that a cover would make all that difference.
A ) I want to hear that thing as it's ready to be sold
B ) Where's the heatsink testing results at? You can't market something to be 30x more efficient than standard heatsinks and not give any results! :P
Click to expand...
It is still in development I'm pretty sure their going to replace the motor with a quieter operating motor.

The 30times more efficient cooler comes from a size to surface area cooling capacity comparison which can be found on their main website.
https://ip.sandia.gov/techpdfs/Sandia Cooler presentation.pdf
 
They're really not very good at making videos... That video is hard to watch when they keep cutting to that obnoxious motor whine (MY FREAKIN EARS!).

Would also have been good if they went into a bit more detail on how the heat is transfered from the chip to a spinning object.

And I see there he had the Intel flower style cooler, how is this thing going to compare to a heatsink with several heatpipes?
 
Another thing that came to my mind:

Hows that "Dynamic Air Bearing" gonna work if its mounted horizontal, like in most Computercases ? The spinning thingy would hang down a side little more and maybe scratch on the base?!
 
I Like the idea, but is useless without any real world tests, just because it works in theory does not mean it will perform. Just like USB 2.0 theoretically does 450mbs but in actuality does around 3mbps
 
If you look at the Q&A the article linked to, that they did with one of the inventors, a lot of other questions are answered, such as why the air gap is not an issue and how it can work mounted vertically, plus many more. The Q&A is perhaps more interesting, if technical, than the article.
 
Kyze said:
Another thing that came to my mind:

Hows that "Dynamic Air Bearing" gonna work if its mounted horizontal, like in most Computercases ? The spinning thingy would hang down a side little more and maybe scratch on the base?!
Click to expand...

I don't think it will, it's 1/1000 of an inch off the base and spinning at those 2000rpm I don't think it will do anything.
 
Looks interesting but I cannot imagine it taking off due to mounting it vertically, not to mention most air coolers which have fans are pretty quiet now and will cool a cpu well past the 4ghz mark, right up to the 5ghz+ without any real increase in noise.
 
I guess. Although, I think the main problem with stock heatsinks are the noisy fans they use. A little extra spent on a better fan and I don't think people with stock CPUs, i.e. 99% of owners, would really complain.
I dunno though, it's been years and years since i've heard a stock heatsink in action, they could be absolutely god awful.
 
I had a stock cooler before my hyper 212 and by most standards the 212 isn't even great but at 4.5ghz it has better temps than the stock cooler at stock 3.3ghz. I'm running 1.25v for 4.5ghz
 
Yeah, I've got to admit my friend's 3570k at stock is hotter than my 3770k at 4.5GHz
The stock coolers are outdated, an extra $4 spent on them, alon with better thermal paste, would probably make all the difference.
I doubt they cost Intel more than $3 to implement as it stands
 
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