[CNT_Coolr]

Hello all,

I work with a company that develops Carbon Nanotubes as a TIM. I have my computer cooling with CNTs as a TIM1 (I took my lid off). I currently use 3D Mark as a benchmark...what other benchmarking software would you recommend?

Any help is appreciated,

-Chris

AMD 4600+
ATI X1900

[scott d]

are you just trying to produce heat, or run a performance benchmark?

For straight up heat I'd use CPU Burn or Toast or Prime95

For Performance I'd use something like Super Pi

[CNT_Coolr]

I'm trying to run a performance benchmark that would really mean something...thanks.

[scott d]

3D mark is probably your best bet then. maybe pc mark or aqua mark too.

Check out our Benchmarking Section

[Sleepy_Steve]

But the effect of a TIM alone should be temperatue only because the increased ammount of overclock gained (which influences the 3dmark, aquamark, and PC mark scores) is highly subjective.

A TIM should only have effects on temp -- and that, i think, should be what youre measuring.
So i recoemnd using burn, toast, or prime to generate max proc load and get an honest heat number.

[CNT_Coolr]

I have burn, toast, and prime. Since I have a dual core processor, I've been running two toasts at one time. I also ran prime & toast at the same time. Am I doing this right?

fyi...for those that want to know more about my company (not NASA)

http://www.nasa.gov/centers/ames/new.../04_112AR.html

[CNT_Coolr]

thanks scott d...I'll take a look at the benchmarking section

[scott d]

make sure you're running prime95 like this http://www.dfi-street.com/forum/showthread.php?t=16446

I don't have a dual-core so I don't know how to properly configure those programs to max out both cores.

[CNT_Coolr]

Thanks scoot d.

I have a silly question...does it really matter if there is a carbon nanotube thermal interface material? Are we creating something that there is no need for? would you try something like that in your computer? Or is this something that is unknown.

Here are some benefits:
Dry contact
no mess
performs better than the top greases

[ziggo0]

Originally Posted by CNT_Coolr

Thanks scoot d.

I have a silly question...does it really matter if there is a carbon nanotube thermal interface material? Are we creating something that there is no need for? would you try something like that in your computer? Or is this something that is unknown.

Here are some benefits:
Dry contact
no mess
performs better than the top greases

Well...its not really a silly question. I couldn't imagine alot of people around here have had any experience with CNT as TIM. The current best contender right now to compare any TIM against is Arctic Silver 5 (AS5). If you could provide numbers...as in temperatures and what type of cooling you use, your overclock, etc, it would help As well as comparisions against other TIMs (i.e. AS5).

[Shell]

Heh cool, you're creating a thermal interface material that uses an "array" of vertical carbon nanotubes?
I was thinking of experimenting on that if I ever got my hands on the technology to replicate those little things...
But chances are that they'll never be of much use if high quality superchilled liquid metal alloys are the competition in the future.
I've yet to see anyone produce a load of carbon tubules... production of the highest quality still seems to be yielding nano results.

I'd shurely use it once it's perfected and if it works better then any other heat-pads out there.

[scott d]

I honestly don't know, sounds out of my price range...

[CNT_Coolr]

Well you're right scott d...the perception is that it's going to be expensive. If we are to be a business, we have to be competitive to the best greases, ie Shin-Etsu, AS, etc. So, we need to be cheap & have performance! I can tell you that the performance is gaining interest from the industry.

[Tyreal]

I did a project on Carbon Nanotubes in school as well as watched a documentory on them. Sounds like something that has the potential to be big.

[CNT_Coolr]

Shell...Our market is not the superchilled arena...it's the current everyday stuff (off the shelf & overclockers). But it may enhance the superchilled liquid metals.

-chris

[Shell]

I don't suppose you could intergrate that technology with TECs... I'd love to do that... An efficient, high grade, TEC that conducted heat extraordinarily well would yield some amazing results, and if you had a hybrid cooled all-in-one heatsink bundle it could be a good high-end consumer product and not just an enthusiast's toy. Or at least an enthusiast's toy.

Oh yes, ever use Gallium alloys as a comparison? As reactive they may be with most computers chassis, it works wonderfully well and costs less then AS5 because you need soo little. It also pwns at liquid cooling... but damn is it expensive in a large loop.

Keep up with that technology, if it proves to be highly rugged, reliable and perhaps a little shock(kinetic not electric) resistant... and not that expensive, I'm putting that in my "portable hardware", the shockwave from explosives often cracks chips(or chips chips )...

Also, can you PM me more information if you're not going to give out a whole lot?

[jcll2002]

Sounds interesting!

[Captain Helghas]

I'm going to see if Sir Harry Kroto is in at work tomorrow and I'll ask him if he has any thoughts. As I understand it, CNTs have a thermal conductivity in between diamond and graphite. I just don't know whether that's better than silver.

[CNT_Coolr]

Shell, I would be glad to give you any information...I just need to know what kind of information would mean anything to you.

[CNT_Coolr]

Captain H, Sir Harry Kroto stopped by earlier this year and got a personal presentation from us. What kind of silver are you talking about? AS5? How would you define that the CNTs are better than silver?

Would it be a TIM1, TIM2, overclocked speed, highest temp, etc.

thanks