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Legacy Personal Blogs First of All, Tame the roaming beast, BBB AI.
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Engagement
  • Author Author: fyaocn
  • Date Created: 11 Oct 2019 3:49 AM Date Created
  • Views 2619 views
  • Likes 10 likes
  • Comments 10 comments
  • visionthingch
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First of All, Tame the roaming beast, BBB AI.

fyaocn
fyaocn
11 Oct 2019

Just got the BBB AI, But one should

Tame the roaming beast first.

image

Unlike normal BeagleBone_xx I used before, the BBB AI is one beast, roaming and heating instantly, then overheat tohalt.

But I like it. I know that is just what I want, as Nvidia GPU has done.

I am pretty sure TI is always good at performance balance, that is what TI can do at best. I would prepare to drive the BBB AI into water if neccessary.

I find one 80x80 CPU cooling fan now, it works fine. Of course,  25x25mm cooling fan would be better, I would place order.

 

But another problem comes, Tensorflow is only supported on 64bit OS. Unlike Raspberry Pi 3B+ and later which is 64bit compatible.

I shall find way out.

 

--------------------------

The 25x25x10 axis Fan arrives.

image

 

image

Looks OK, but I think it is WRONG ANSWER.

Why? Whatever the namerating of airflow or capacity, the center part is covered by the motor.

The test result proves my assumption. The BB-ai can work continuously even in heavy burden, but the temperature is obviously higher than my first ugly configuration. I think one Extention board BB AI cooling Addon board available by mayermakes  would be more practical choice.

The rim of fan blade offers more air flow. In this small 25x25 fan, the performance is poor.

I do not need quite CPU fan, but one noisy strong blow.

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Top Comments

  • dubbie
    dubbie over 5 years ago +3
    That's a bit fan for a small board. Dubbie
  • mayermakes
    mayermakes over 5 years ago +3
    Hi in the meantime I have assembled and tested the first 0 batch of my BB-AI-Cooler addon board. and it works fine. I use it in a project to be seen on element14presents where the board is enclosed in…
  • fyaocn
    fyaocn over 5 years ago in reply to clem57 +2
    I have wrongly assumed so. Until I look up datasheet again, the hardware platform is 32 bit. I have been in Debian MIPS group. Debian is rich and diversity in nearly all types of hardware platform, while…
Parents
  • clem57
    clem57 over 5 years ago

    fyaocn Is not Debian on BB-AI on 64 bit OS?

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  • fyaocn
    fyaocn over 5 years ago in reply to clem57

    I have wrongly assumed so. Until I look up datasheet again, the hardware platform is 32 bit.

    I have been in Debian MIPS group. Debian is rich and diversity in nearly all types of hardware platform, while 64 bit OS is popular now. If you have time you will enjoy LFS(Linux from Scratch) a lot.

     

    In fact, the first SBC is BeagleBone with AM335x. Later Raspberry Pi is more popular, half the price of BBB.

    I like the reliablility of TI AM335 series, same as that used in my LEGO NXT 2.0. BBB AI is even stronger.

     

    In my brief test,Overheat is not a big issue. One small 5V fan can keep the temperature normal. Complex PWM control loop is not a must, rotary speed of DC motor can simply be voltage-controlled. In my case, 0.7W is OK.

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  • clem57
    clem57 over 5 years ago in reply to fyaocn

    fyaocn  wrote:

     

    I have wrongly assumed so. Until I look up datasheet again, the hardware platform is 32 bit.

    ...

    Thanks for the clarification. So the hardware, not the software is the barrier...

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  • shabaz
    shabaz over 5 years ago in reply to fyaocn

    fyaocn  wrote:

     

    One small 5V fan can keep the temperature normal.

    Same here.. I don't think mine has exceeded 50 degrees so far, in >20 deg C ambient, (with a fairly quiet 40x40x6mm fan and a 40x60x2.5mm heatsink) - I've done compilations on it for several hours, but I only checked a few times, not continuously. And I did run a stress --cpu 4 test. But these are still lightweight exercises, since I cannot load all the accelerator cores - I have no software to do that. Anyway, probably like you too, I'm glad to now concentrate on the software and interesting apps.

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  • clem57
    clem57 over 5 years ago in reply to shabaz

    shabaz take a look at OpenCL v 1.1. It can exercise the cores and more.

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  • clem57
    clem57 over 5 years ago in reply to shabaz

    shabaz take a look at OpenCL v 1.1. It can exercise the cores and more.

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  • shabaz
    shabaz over 5 years ago in reply to clem57

    Hi Clem,

    I will do at some stage, but right now I have some other things I want to do with BB-AI, i.e. I'm in the zone! : )

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