Thomas (boggyb) wrote,
Thomas
boggyb

  • Mood:
Plugging in an external USB hard disk apparently made my USB 3G modem disappear for a few moments. Weird.

The hard disk did seem to struggle to spin up - I'm guessing the combination of the spinup current and the draw of the 3G dongle was more than what the laptop was happy to deliver.

Now, in theory, USB devices are supposed to ask the controller how much power is available and draw no more than that, with an upper limit of 500mA. In practice, the rated spinup current on most hard disks (including this one) is much more than that. Isn't it wonderful the way standards get ignored?
Subscribe

  • E3 WOT WOT!

    There's quite a few games in the Nintendo Direct, so here's what caught my eye... Super Monkey Ball Banana Mania: I'd completely forgotten about…

  • Math Rescue

    Today's random discovery: Math Rescue is still a thing! elemnar and I used to spend ages playing this when we were small. As with so…

  • Pasta night

    Yesterday was pasta night with an old game and a new game! First up is the confusingly-named 6 nimmt! card game, which is one of those games where…

  • Post a new comment

    Error

    default userpic
    When you submit the form an invisible reCAPTCHA check will be performed.
    You must follow the Privacy Policy and Google Terms of use.
  • 6 comments