John Bowden wrote:
I have a external USB HD enclosure that takes its power from the one USB socket. Its only failed to do so on one oldish tower that a friend of mine has, on that machine it needed the second "power" connection. Got it from Ebay


thts also out of spec, as USB is speced for 2.5 watts, 500mA at 5V, per port. Typlical laptop HD is like 5 watts, more when spinning up.


yes, I know it usually works.  just saying...
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