KnCminer thermal simulation

[Puppet]

Saw this on KnC's website:



https://www.kncminer.com/images/rnd/Slide8.png

WTH, the die is simulated to reach ~200C? And that despite a monster cooler and relatively cool 25C airflow?

Now you may say its only a simulation or they have tweaked the cooling/packaging since, but then why would you put that simulation on your website?
Besides, it would take more than tweaking to reduce the temp from 200C to something sane.

Has KNC said anything about this?

[JoelKatz]

I'm pretty sure that's F, not C. And you typically run the simulation until the die reaches its temperature limit to see how much power is being dissipated when you hit it and what can be improved. For example, if the die hits 100C and the heat sink is only a few degrees above ambient, you know that air flow isn't worth improving.

When rating a cooling solution, the big question you want answered is -- how many watts can my die generate without hitting its limit? Good solutions make that number high. Bad ones make it low. So that's the condition you want to analyze.

[Puppet]

I considered the possibility of it being fahrenheit, but then it would be cooled with subzero (Celsius) air, which doesnt make a lot of sense and it would still reach 100+C over ambient, hardly reassuring.

That they would be simulating with an exaggerated  power until maximum temp is reached is more believable, but again thats not the picture Id put on my website.

[Photon939]

I'm pretty sure that's F, not C. And you typically run the simulation until the die reaches its temperature limit to see how much power is being dissipated when you hit it and what can be improved. For example, if the die hits 100C and the heat sink is only a few degrees above ambient, you know that air flow isn't worth improving.

When rating a cooling solution, the big question you want answered is -- how many watts can my die generate without hitting its limit? Good solutions make that number high. Bad ones make it low. So that's the condition you want to analyze.

An air cooled system simulation with intake air below freezing? Is this a simulation for running bitcoin miners in Antarctica?

[markm]

This again? What happened to the existing thread that already went into this?

-MarkM-

[DPoS]

you're right Puppet, it ain't gonna work.   Glad you caught that, everyone (but you, of course) can cancel their orders now

[dentldir]

If I remember this slide correctly, the simulation is only for the heatsink's performance characteristics not the die.