--- In "vincentkassis" <> wrote:
>
> Hello,
>
> Thank you for the input, but no, the power supply is out of the
enclosure.
>
> We just lost a 2nd ARM after 3 days of running in the same enclosure.
> So that rules out a problem associated with a manufacturing defect (we
> think and hope...).
>
> The OS does not seem to crash, but the network functions and the RS232
> interface simply stop working after heat build up.
>
> If we remove the lid of the enclosure, everything starts working again
> correctly, without a reboot!
>
> By the way, we purchase extended temperature ARM boards. Is there a
> way to identify a ARM with the extended temperature option from one
> without the option?
>
> Thank you in advance for any input.
How hot is it getting inside that enclosure? And what is the major
heat source?
Off-hand you can try
a) painting the box white or reflective silver
b) shading it with a piece of reflective metal (alum. or stainless)
We use both of these quite effectively.
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