WillBoxGaming1
Posts: 43
Joined: Tue Dec 26, 2017 1:54 am

Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:14 pm

Hello there! First of all, sorry for the stupid question :P

Im currently using the power supply provided in this kit: https://www.52pi.com/all-products/266-t ... el-bb.html

However, time to times, a lightning bolt appears on the corner of my screen. Secondo, atleast one time per day, my Pi crashes in a way that I didnt knew it was possible! Let me explain:

My Pi3 have:
- A fan (from the kit above) connected to these pins: Image
- Wireless mouse
- Apple keyboard

So when my Pi crashes, the lightning bolt appears for a few seconds, the fan goes litteraly CRAZY (gets really fast and loud) and the red led is flashing. Of course, when this happens, I lost the signal on my TV. When the power goes OK again, my Pi simply reboots.

So now that I know that my "charger" is defective, now I want to buy a new one from amazon.

Im planning on overclocking my Pi @1.35Ghz, with the fan running. I was planning about buying this one:
https://www.amazon.com/NorthPada-Raspbe ... op?ie=UTF8

Am I doing the good choice? Sorry for the long post! XD
Any help is appreciated, thanks guys.

fruitoftheloom
Posts: 20495
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:19 pm

WillBoxGaming1 wrote:
Thu Jan 04, 2018 7:14 pm
Hello there! First of all, sorry for the stupid question :P

Im currently using the power supply provided in this kit: https://www.52pi.com/all-products/266-t ... el-bb.html

However, time to times, a lightning bolt appears on the corner of my screen. Secondo, atleast one time per day, my Pi crashes in a way that I didnt knew it was possible! Let me explain:

My Pi3 have:
- A fan (from the kit above) connected to these pins: Image
- Wireless mouse
- Apple keyboard

So when my Pi crashes, the lightning bolt appears for a few seconds, the fan goes litteraly CRAZY (gets really fast and loud) and the red led is flashing. Of course, when this happens, I lost the signal on my TV. When the power goes OK again, my Pi simply reboots.

So now that I know that my "charger" is defective, now I want to buy a new one from amazon.

Im planning on overclocking my Pi @1.35Ghz, with the fan running. I was planning about buying this one:
https://www.amazon.com/NorthPada-Raspbe ... op?ie=UTF8

Am I doing the good choice? Sorry for the long post! XD
Any help is appreciated, thanks guys.


http://www.microcenter.com/product/4626 ... 5A_-_White
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rpiMike
Posts: 857
Joined: Fri Aug 10, 2012 12:38 pm
Location: Cumbria, UK

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:22 pm

As fruitoftheloom suggests - buy the official 5.1 Volt 2.5 Amp 18AWG cable psu (built in cable, no power switch)

WillBoxGaming1
Posts: 43
Joined: Tue Dec 26, 2017 1:54 am

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:29 pm

rpiMike wrote:
Thu Jan 04, 2018 7:22 pm
As fruitoftheloom suggests - buy the official 5.1 Volt 2.5 Amp 18AWG cable psu (built in cable, no power switch)
So even with a 1.35Ghz overclock and a fan on it, I should be okay right?

fruitoftheloom
Posts: 20495
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:35 pm

WillBoxGaming1 wrote:
Thu Jan 04, 2018 7:29 pm
rpiMike wrote:
Thu Jan 04, 2018 7:22 pm
As fruitoftheloom suggests - buy the official 5.1 Volt 2.5 Amp 18AWG cable psu (built in cable, no power switch)
So even with a 1.35Ghz overclock and a fan on it, I should be okay right?

Yes it is a good stable PSU:

https://www.raspberrypi.org/help/faqs/#powerReqs
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rpiMike
Posts: 857
Joined: Fri Aug 10, 2012 12:38 pm
Location: Cumbria, UK

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:36 pm

Yes, my Pi3 is overclocked with fan.

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rpdom
Posts: 15023
Joined: Sun May 06, 2012 5:17 am
Location: Chelmsford, Essex, UK

Re: Power Supply for a Raspberry Pi 3

Thu Jan 04, 2018 7:37 pm

WillBoxGaming1 wrote:
Thu Jan 04, 2018 7:29 pm
rpiMike wrote:
Thu Jan 04, 2018 7:22 pm
As fruitoftheloom suggests - buy the official 5.1 Volt 2.5 Amp 18AWG cable psu (built in cable, no power switch)
So even with a 1.35Ghz overclock and a fan on it, I should be okay right?
There are no guarantees with overclocking.

Try it and see. It may work or it may not.

rhubarbdog
Posts: 64
Joined: Mon Dec 11, 2017 9:58 pm

Re: Power Supply for a Raspberry Pi 3

Fri Jan 05, 2018 9:34 am

The information regarding the fan going crazy before the raspberry pi dies. Is there enough current supplied to those gpio pins to power a fan. I would have thougth a transistor and seperate power in the collector emitter circuit.

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davidcoton
Posts: 4037
Joined: Mon Sep 01, 2014 2:37 pm
Location: Cambridge, UK

Re: Power Supply for a Raspberry Pi 3

Fri Jan 05, 2018 10:26 pm

rhubarbdog wrote:
Fri Jan 05, 2018 9:34 am
The information regarding the fan going crazy before the raspberry pi dies. Is there enough current supplied to those gpio pins to power a fan. I would have thougth a transistor and seperate power in the collector emitter circuit.
Those pins (as per photo) are not gpio, they are power pins on the GPIO header. Permanently on with plenty of oomph (that is a technical term worth learning :lol: ). In fact the +5V pin is what you would use when a fan is conneccted via a transistor.
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