[clug] ATX r pi

Brians brians at en.com.au
Sat Nov 16 12:23:02 MST 2013

The rpi has only two USB ports which are often used by a keyboard and
mouse and then you need a few more ports ie memory stick, external 2
1/2"  harddisk etc

A powered USB hub is often used to provide more USB ports and also if
the hub has a 2 amp or more external power supply provide the 5VDC to
power the rpi itself.

A model B rpi only uses around 800mA or around 4 watts.

Bunnings have a 2000 mA 5VDC seven usb port powered hub for around $30
which works well with a rpi.

Jaycar and many other places sell powered usb hubs, just make sure that
it has a minimum 2 amp supply.

Alternatively use a spare USB phone charger or a cigarette lighter usb
car charger.

On 17/11/13 05:42, John Mills wrote:
> On Sat, Nov 16, 2013 at 12:46:47PM +0000, Logan McLintock wrote:
>> Date: Sat, 16 Nov 2013 12:46:47 +0000
>> From: Logan McLintock <u4955237 at anu.edu.au>
>> Subject: [clug] ATX r pi
>> To: "linux at lists.samba.org" <linux at lists.samba.org>
>> Hello my friends,
>> I and working on a holiday project (my exams went well) and I want run a raspberry pi off an ATX power supply?
> You might want to be aware, especially for testing and for a low-current 
> application, that some PC power supplies will only run with a certain 
> minimum load.
> http://www.tomshardware.com/reviews/power-supply-specifications-atx-reference,3061-13.html
> (Hmm, this text is very similar to my Mueller 5th edition...)
> John Mills

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