I cant get a stable system running!
#1
Hi,
I have had the R-Pi model B for about 3 weeks.

This is my set up -
Openelec over clocked to turbo.
8 gb class 10 SD card
16 gb USB 3.0 (Sandisk Extreme)
Wired


I am yet to be happy with its performance.
I have tried both Openelec and also Raspbmc (both SD card only installs and also booting with USB 3.0) and they seem fine at first then I get constant reboots, freezes, serious menu lag and also it cuts out half way through watching something and kicks out to the home screen.

I have created several new installs and its always the same.
I thought it may be the power lead as I was using a mobile phone charger so I bout this - http://thepihut.com/products/micro-usb-p...spberry-pi Micro USB Power Supply (5V 2A) and its no different.
Could it still be a power lead issue?

Any thoughts would be hugely appreciated!
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#2
A log file would be helpful but it sounds like a few problems. What case are you using for it? Is it getting to hot? does it reboot when not overclocked?
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#3
(2014-10-05, 20:22)calev Wrote: A log file would be helpful but it sounds like a few problems. What case are you using for it? Is it getting to hot? does it reboot when not overclocked?

Hi,
Yes it reboots when not overclocked.
I have this case - https://www.modmypi.com/cyntech-black-raspberry-pi-case
It doesn't seem to get hot....120-140F.
I will try and get a log uploaded later but thanks for responding!
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#4
I use the same case. It traps in a lot of heat but those temps are safe. Doesn't hurt to drill some holes in the top of the case to dispense heat and keep it on its side. If your running any sketch addons those are often the problem with slow menus. And when the pi first boots up its going to go pretty slow for a couple minutes. The more addons you have installed the longer it will take because they are all updating and starting up in the beginning. But, It should not be rebooting all the time. That happens when your overclocking too high or power supply issues like you suspected. Could be you have to many usb devices hooked up. Do local videos cut off and send you back to the home screen or is it just streaming videos?
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#5
Too low a voltage is the most common cause of crashes and reboots. It could be the USB power cable or the supply.
Only way to be sure is to measure the voltage when the Pi is under load.
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#6
So it is a model B case.
You should measure the input voltage on the Pi itself and on model B I think it was between test points TP1 and TP2.
If it is anything below 4.8V you should look for a better cable. I had to cut up a USB to MicroUSB cable and replace the red and black wires with thicker wires to make mine go back in January....
It turns out that many such cables are not designed for sending a lot of current from one end to the other so they use hair thin wires and they drop a lot of voltage when the Pi starts consuming upwards of an A of current.
Bo Berglund
Sweden
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#7
5V 2000mA Micro USB Power Supply.
> Input : AC 110-250V 0.15A 50/60Hz
> Output : DC 5V 200mA (2A)
> 1500mA – enough to power both your Raspberry Pi and USB devices
> Suitable for international use
> Short circuit/overload protection
> UK 3 pin plug
> Manufactured specifically for the Raspberry Pi
> CE certified

For a start i'd be worried that a "specialist" doesn't know the difference between mA and A, that is not a 2A supply it is 0.2A, or 1.5A if you read the line below.....confused....

PSU issues would be my bet.
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#8
(2014-10-06, 14:11)CustomIce Wrote: 5V 2000mA Micro USB Power Supply.
> Input : AC 110-250V 0.15A 50/60Hz
> Output : DC 5V 200mA (2A)
> 1500mA – enough to power both your Raspberry Pi and USB devices
> Suitable for international use
> Short circuit/overload protection
> UK 3 pin plug
> Manufactured specifically for the Raspberry Pi
> CE certified

For a start i'd be worried that a "specialist" doesn't know the difference between mA and A, that is not a 2A supply it is 0.2A, or 1.5A if you read the line below.....confused....

PSU issues would be my bet.

Thanks for the reply.
I have ordered this instead.....
http://cpc.farnell.com/raspberry-pi-psu/...dp/PW03060
Have I chosen ok?
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#9
(2014-10-06, 17:25)northernmonkeyz Wrote: Thanks for the reply.
I have ordered this instead.....
http://cpc.farnell.com/raspberry-pi-psu/...dp/PW03060
Have I chosen ok?

This would be the one I'd recommend:
http://swag.raspberrypi.org/collections/...wer-supply
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#10
Looks fine that CPC one.

They do sell a lot of stuff, some good some not, but PSUs are cheap now anyway.

Hopefully that'll solve the issues, if not then you have ebayable PSUs for Pi!
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#11
As far as speed and slugishness go. It might be your flash drive. With my HD Homerun Prime. I needed the absolute fastest flash drive to handle the high bit rate MPEG2 streams.

These Samsung ones work GREAT!

http://www.newegg.com/Product/Product.as...12K1NB1622

25 MB/s read - 22 MB/s write using a USB 2.0 card reader.
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#12
(2014-10-06, 18:25)CustomIce Wrote: Looks fine that CPC one.

They do sell a lot of stuff, some good some not, but PSUs are cheap now anyway.

Hopefully that'll solve the issues, if not then you have ebayable PSUs for Pi!

Yeah... no!

It doesn't look fine... 1A against 2A.
Hardly the same thing if you're going to connect all sorts of gadgets to your pi. Or overclok the hell out of it.
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#13
(2014-10-06, 17:34)popcornmix Wrote: This would be the one I'd recommend:
http://swag.raspberrypi.org/collections/...wer-supply

Is there anything in the UK that's recommended, as that's £9 with shipping and only has a 30 day warranty?

I've been using a 12v PSU to 5v UBEC to GPIO header till now but want to get a smaller/tidier USB PSU for my new Pi v2.

EDIT: Found it here http://cpc.farnell.com/jsp/search/produc...ku=SC13462 for £7.20. They have a minimum spend of £10 though but I might just get two.

Still interested if anyone knows of a cheaper alternative that's known to be reliable and work well with the RPi though.
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