Power supply for a small farm

[dblevins]

Building a farm of Raspberry PIs, currently have 10, plan to have 20.

The first five were running great, but the second set of 5 came today I and I discovered my power supply is inadequate.

I purchased this which has outstanding reviews.
http://www.amazon.com/Plugable-USB-Port ... 922&sr=8-2

I can get about 7 PIs running on it, plugging in more and the device shuts down and all PIs go night-night.

Looking for other options that don't involve buying one dedicate power-supply per PI. That's a lot of power-strips.

Surely someone out there must have a good option for bulk power to PIs. I saw some guy on Google+ showing "My new connectors for my custom power supply." I pinged him but never got an answer. Don't exactly have the know-how to build something custom, but would be happy to roll up my sleeves if something looks promising.

[Dilligaf]

Something like this http://www.amazon.com/Gino-Regulated-Sw ... wer+supply should work, 10 amps should power 15+ PI, possibly 20 depending on what's attached to them

[gordon@drogon.net]

Building a farm of Raspberry PIs, currently have 10, plan to have 20.

The first five were running great, but the second set of 5 came today I and I discovered my power supply is inadequate.

I purchased this which has outstanding reviews.
http://www.amazon.com/Plugable-USB-Port ... 922&sr=8-2

I can get about 7 PIs running on it, plugging in more and the device shuts down and all PIs go night-night.

Looking for other options that don't involve buying one dedicate power-supply per PI. That's a lot of power-strips.

Surely someone out there must have a good option for bulk power to PIs. I saw some guy on Google+ showing "My new connectors for my custom power supply." I pinged him but never got an answer. Don't exactly have the know-how to build something custom, but would be happy to roll up my sleeves if something looks promising.

How about powering the hub(s) with a standard PC power supply? You'll need to make up a power cable to connect the PSU to the hub(s) though but after that it ought to be more than enough...

-Gordon

[jamesh]

Building a farm of Raspberry PIs, currently have 10, plan to have 20.

The first five were running great, but the second set of 5 came today I and I discovered my power supply is inadequate.

I purchased this which has outstanding reviews.
http://www.amazon.com/Plugable-USB-Port ... 922&sr=8-2

I can get about 7 PIs running on it, plugging in more and the device shuts down and all PIs go night-night.

Looking for other options that don't involve buying one dedicate power-supply per PI. That's a lot of power-strips.

Surely someone out there must have a good option for bulk power to PIs. I saw some guy on Google+ showing "My new connectors for my custom power supply." I pinged him but never got an answer. Don't exactly have the know-how to build something custom, but would be happy to roll up my sleeves if something looks promising.

How about powering the hub(s) with a standard PC power supply? You'll need to make up a power cable to connect the PSU to the hub(s) though but after that it ought to be more than enough...

-Gordon

+1 - that was my first thought.

[Mortimer]

That would presume that it is the power supply shutting down, and not some sort of protection within the hub itself.