beta2

[IriDium]

(11th Sep, 2013 04:53 AM)f1vefour Wrote:  A television generally puts out 500 milliamp, the Pi needs 1Amp.

You can't tell. The standards for USB is that it should supply 500ma but the RPi is not following that convention and only gives 100ma on each of the USB ports. Couple that with the Ethernet (Which is just another USB port) and you have another 100ma.

Typically the RPi will draw 700ma on startup (The higher the OC the higher the value) (Yes it can run on less (I've done it) - but that is not optimal) add that to 3 x 100ma (if maxed) peripherals and we have the magic 1amp PSU.

The model A obviously needs less amperage.

Which is why, WIFI dongles, USB powered HDD and other resource hungry peripherals should always use a powered Hub.

A typical flash drive will draw between 50 and 70ma so will be fine in the RPi slot.

So IMHO give the RPi as much power as you can. (Don't get technical about power being a watt )

It's just my observations