try the HTC charger as that's more likely to be stable then the other two PSUs you have the "RS online one is likely an china copy" it only needs to be 750mA as i am using now (charger of my motorola headset)MORA wrote:The keyboard not working was with a lab supply, im fairly sure thats stable, since thats kinda what they are made for.
The charger I used in the first few days was a unbranded one, I have a HTC one too, but I dont know if thats much better.
I see RS has one linked from the raspberry page, that is not too expensive, that must be good enough when they link it ?
http://uk.rs-online.com/web/p/stromfors ... 430702|rel
that looks quite good built PSU,stupid_boy wrote:be a china one does not mean it not work. i use one like this:
http://www.ebay.com/itm/25W-DC-5V-5A-Re ... 27b9ca5323
it is china made, yes! but it is great! currently it powers all i have connected to my RPI. i do not have any other power supply in entire system. well, i have to rewire power line of my USB hub too.
while you change your supplies, try with different cables. i test all that i have with no success. now i use regular A-A usb with converter to micro usb. even not all of my AA cables work for me. if you know what you are doing, you can test with your lab supply directly to GPIO pins.
RS are simply sellers. they recommend what they have in warehouse and what they want to sell.
They may have some effect. I believe some of the Class 10 cards have issues.MrBunsy wrote:As an idea, I wonder how much of a impact different makes of SD cards have.
Don´t juge the PI for the Linux kernel.MORA wrote:Hi,
And also class 6 (the one that was burned by the Pi), class 4, class 2 (with both I get stability issues). One friend of mine also managed to kill a NEW class 10 card with his Pi. After looking at the PI and raspbmc forums, it doesn't seem to be a isolated problem of some units ...rpdom wrote: They may have some effect. I believe some of the Class 10 cards have issues.
Well, I've already tested the supplied voltage and all seems correct. In fact, I've already tested these PSUs with devices like disks, phones and so.rpdom wrote: A cheap digital voltmeter/multimeter is a good investment for checking the voltage supplied to the Pi, and is often useful around the home for testing batteries and things.
Well , I killed 2 new 64G sd ´s class 10 due my OpenSuSE RPI experiments past weeks on my Model B ( 512MB Pi´s ) .minaya wrote:And also class 6 (the one that was burned by the Pi), class 4, class 2 (with both I get stability issues). One friend of mine also managed to kill a NEW class 10 card with his Pi.rpdom wrote: They may have some effect. I believe some of the Class 10 cards have issues.
Just speculation on my part, but this may be a combination of two problems (1) cheap supply with too-small filter capacitor and (2) poor power line quality, for example with short brownouts / glitches that occasionally drop your supply voltage. This can happen when a motor starts up, even a small-ish motor like a refrigerator compressor or a water pump, if you've got a weak enough power connection.hormiguero wrote:I have several Pi's running remotely (over 1000 miles away - headless). They are very stable - now. I had problems as described at the start. I read all of the posts about "... your problem is the power supply..." and I checked the supply with a good scope and couldn't see any appreciable noise. Still the problem persisted... I finally wired a 33000uF, 16v cap across one of the cheap supplies and the problem went away!! I now either use a GOOD power supply or automatically add the cap to the cheap supply!
I doubt its overpowering - more likely the issue that Gordon just pushed a fix for - check out the Raspi github, latest firmware, and some of the SD card corruption threads that are on here.mikroskeem wrote:i ran my pi 2 weeks, and it suddenly stopped responding over ssh. good that i had ZNC running and i could access shell and poweroff the Pi. I use my router's usb port to power my raspberry pi(measured 3A and very stable, 5.1V). And if i booted, systemd segfaulted(arch linux). I have rpi rev. 2 model B, class 4 Toshiba SD card, 1,25v overvolt on cpu, sdram, 950mhz, core freq 350mhz. Now i can't even acces sd card thought computer, superblocks are corrupted. I blame that rpi gave too much volts to sd card. Any hardware modifications to sd card wiring to eliminate sd card overpowering?
Maybe one PI has a non recovered Polyfuse, and the other one not.9000reasons wrote:I have two Pis and they are complete opposites with regards to stability.
The older Rev1 is an absolute pain. It is very flaky and when set up as a small file server frequently stopped responding. No matter what PSU, SD card, accessories or what-not this Pi just is not stable at all. It fails to last a day sometimes!
The newer 512Mb Pi with the same exact SD card has been running without fail for 50 days now and is super-fast to respond. I have had no problems with it so far and it performs quite a lot of services to multiple Windows machines and Android phones.
When I compare PCBs of the two Pis I can't help but feel that there is a difference in build quality between them.