VIM2+Tone temperature

VIM2
12

result_with_toneboard
result_with_toneboard.jpg1920×640 436 KB

  1. Restarted VIM2 SBC, to reset the uptime counter.
  2. Mounted a Tone Board to the top of the VIM2.
  3. Looped a 1080P video for 1 hour.

Results:

  1. System Uptime: 1 Hour
  2. CPU Internal Temperature: 73.8C
  3. Toneboard Surface Temperature: 57.2C

Notes:

  1. 73.8C is still within spec of the SoC, which puts max temperature at 105C.
  2. Temperature increase is most likely caused by the disruption of convective airflow above the heatsink, as the Toneboard is mounted above the heatsink.

Solutions:

  1. Most obvious would be to add forced-air-flow, rather than relying on passive convection, to carry heat away from the SoC.
  2. Another solution would be to break-out the plastic plate on the bottom of your DIY Case, and install a thermal-pad to thermally-couple the SBC with the metal plate at the bottom of the case. Then the case itself should ideally be placed on a thermally conductive surface, or surface with sufficient mass to absorb the heat.
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