On Tue, 2012-12-11 at 20:26 +0000, kc2eq wrote:
> Thanks to all for replying to my original post. My friend (AC2HE) had
> two different Vb PI's. one was rock steady right out of the box and
> the other one had to be replaced , twice. Some think that there is a
> higher failure rate if the board comes from china and the not the UK
> where it seems they have better quality control. In any case
> everything external was swapped from the working PI to the bad one and
> it kept quitting. Ergo, something was overheating or changing on the
> PCB. Light pressure ( board flexing), temp checks, freeze spray
> application,made no difference .
Now that you've mentioned this, I think I have the same problem on a B
model. Its 'shutdown' time varies from 5 mins to a 30 minutes but mostly
it's somewhere between the first 5-10 mins. And everything external was
tested/changed as your case. I found the only method to get it working
is to warmup the CPU, literally. Try to run something CPU intensive eg.
a recursive ls or a dd operation, something that keeps load high
anyway( 1.0 should be fine). I run this for 10 mins or so and
presto...it stays up for days. Keeping the RPI unused for a few days
it's back to the same behavior.
Of course, if this is the case you should send it back right away and
get it replaced. I cannot do mine since I already voided the warranty by
changing the headers on it.
73, lucian yo6plb