PaulBakewell
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Joined: Wed Dec 04, 2013 2:11 pm

Made in UK and China - power problems

Wed Dec 04, 2013 2:31 pm

I have been using a 'Made in China' RPI for about 12 months now with no power problem at all on my Samsang TV using the 1A USB socket. A friend asked me to build a media streamer for him, so ordered a new RPI from RS and received a 'Made in UK' model B. The new UK one will just not boot up connected to the Samsang 1A socket, if I replaced with the made in China it boots up fine. Finally got the UK RPI working with a 1.2A phone charger. Has anyone else noticed this? I have also notice that the build of the UK one is not as good as the one from China (wonky 3.5 sound socket)

obcd
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Re: Made in UK and China - power problems

Wed Dec 04, 2013 3:16 pm

Maybe the china one is a 256MB and the RS UK one is a 512MB type?
The 512MB type uses a different memory chip. Maybe it uses more current due to that?
Have you measured the TP1 - TP2 voltage on the working and non working unit?

jamesh
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Re: Made in UK and China - power problems

Wed Dec 04, 2013 4:18 pm

Are you keeping all the peripherals the same except the Pi itself -same SD, same USB cable, same dongles etc?
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PaulBakewell
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Joined: Wed Dec 04, 2013 2:11 pm

Re: Made in UK and China - power problems

Wed Dec 04, 2013 11:48 pm

Yep all the same items plugged in.

W. H. Heydt
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Re: Made in UK and China - power problems

Thu Dec 05, 2013 1:53 am

When was the last time you updated your SD card...Linux, firmware, etc.?

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pluggy
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Re: Made in UK and China - power problems

Thu Dec 05, 2013 2:40 pm

This is more likely to be an image age/Pi age thing than a power supply thing. New Pis will not boot from old images, its a memory chip thing.....
Don't judge Linux by the Pi.......
I must not tread on too many sacred cows......

obcd
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Joined: Sun Jul 29, 2012 9:06 pm

Re: Made in UK and China - power problems

Sat Dec 07, 2013 1:27 pm

The original poster basically says that the Pi won't boot when powered from the 1 Amp Samsung usb socket.
Using a power adapter, it worked.
Unless besides the supply, he changed the OS image as well, how could the OS image be his problem?

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