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Thread: Laptop Hard Drive Power

  1. 05-27-2003, 12:32 PM #1
    Mp3Goose_Your King
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    Laptop Hard Drive Power

    My usb laptop drive enclosure runs off of 5v 500mA. is there anyway i can get regulated 5v 500MA from the car. It seems that my PSU cant supply enough power.
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  2. 05-27-2003, 12:39 PM #2
    osirisdon
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    Did you actually connect it to your PSU? and tested it?

    If so damn dude, thats gonna be hard.
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  3. 05-27-2003, 01:29 PM #3
    CrazyLittle
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    Ummm... lol!

    Wow...

    okay where to start:

    500mA at 5V is NOTHING. It's a tiny drop in the bucket of power. Unless your PSU doesn't supply 5V at all, then I guarantee you that it supplies enough 5V power to run your harddrive.

    500mA is one HALF of an Amphere. So if your powersupply (say a sproggy) can supply 5V @ 5A, you've just accounted for one TENTH of its total power output.

    As for the hard drive enclosure (I know cause I use one) - well, it says it uses 500mA, but it doesn't. More like 1A at spin-up, and then 500mA at normal operating speed. So yes, you can't just bus power it off of a low-power motherboard. You'll need to run a 5V lead from the powersupply to the hard drive enclosure.
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  4. 05-27-2003, 01:35 PM #4
    Mp3Goose_Your King
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    So just connect the 5v from the power supply to the enclosure and that should work?
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  5. 05-27-2003, 02:16 PM #5
    Aaron Cake
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    Yep.
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