On 4 July 2013 09:44, Renato Golin <renato.go...@linaro.org> wrote: > On 3 July 2013 23:01, Will Newton <will.new...@linaro.org> wrote: >> >> It may also be worth examining your power supplies and see if they are >> providing enough current to run the chip this hot reliably. A bench >> supply could eliminate this possibility conclusively. > > > They're cheap... *very* cheap... They're not the ones Linaro uses in the lab > most of the time, but are the ones Linaro has loads of in the "power supply" > drawer, and the ones that websites show you as "PandaBoard power supply". > > Not this one: > > http://www.digikey.com/product-detail/en/PSAC30U-050/993-1019-ND/2384432?cur=USD > > This one: > > http://www.amazon.co.uk/Pandaboard-Board-replacement-supply-adaptor/dp/B0087SU0RU
What is the output current of this PSU? I tried running pandaboard with 2.5A PSU and it didn't even start. 3A seems to be the minimum. milosz > > The difference in price tells you a lot... ;) > > This was my conclusion when my Panda at home, on idle, was locking up. It > wasn't turning off every time, some times it'd just lock and have one LED > constantly on and the other constantly off, sometimes it'd shutdown > completely, and some times the screen would freeze, but it'd still be > "running". With many other appliances connected to the same socket (TV, Sky, > PS3, printer, etc), the spikes could be causing trouble. > > The boards now have run overnight at 920MHz without a glitch, though they > are understandably 50% slower. I'll see how they behave during today, and if > they don't fail, I'll conclude that it was, indeed, the frequency, not the > power supply. > > cheers, > --renato > > _______________________________________________ > linaro-validation mailing list > linaro-validat...@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-validation > _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-toolchain
