USB power question


  1. Posts : 474
    Windows 7 Enterprise x64 SP1
       #1

    USB power question


    I have two PCs in my office: self-built mATX tower & HP TouchSmart IQ506. I also recently bought a WD My Passport Essential SE 1TB portable hd.

    Yesterday I plugged the new drive into the self-built pc. It didn't work. Tried the ports in the front of the case and those on the back.

    Then, out of curiosity, I tried the drive the TouchSmart. It worked normally.

    What is the problem with my self-built pc not putting out sufficient power for the drive? The specs of the pc are below.

    I have had this happen before with older portable hard drives, an inland sata/ide usb drive adapter and a 2.5" ide drive enclosure. All these devices except the usb drive adapter are powered from the pc. The adapter has an ac plug.

    It is a psu problem, a mobo problem, both or what?

    links of my devices are below:
    Amazon.com: Western Digital My Passport Essential SE 1 TB USB 2.0 Portable External Hard Drive WDBABM0010BBK-NESN (Midnight Black): Electronics
    Jim do little: Inland SATA/IDE Combo Drive Adapter USB 2.0
    ASUSTeK Computer Inc.
      My Computer


  2. Posts : 13,354
    Windows 7 Professional x64
       #2

    Have you tried other USB devices in the ports?

    If you suspect PSU, I suggest taking the PSU from the Touchsmart and putting it in the other machine.
      My Computer


  3. Posts : 474
    Windows 7 Enterprise x64 SP1
    Thread Starter
       #3

    Jonathan_King said:
    Have you tried other USB devices in the ports?

    If you suspect PSU, I suggest taking the PSU from the Touchsmart and putting it in the other machine.
    1. Problem lies with my custom-build tower NOT with TouchSmart

    2. TouchSmart is AiO so I am reluctant to mess with it since it is fine
    http://www.hp.com/hpinfo/newsroom/pr..._iq506r4nq.pdf

    3. Hardware from custom & TouchSmart are not interchangeable

    4. I don't know what to suspect here...
      My Computer


  4. Posts : 13,354
    Windows 7 Professional x64
       #4

    I'm, sorry, I didn't realize the touchsmart was a laptop.

    What is your current PSU like in your desktop?
      My Computer


  5. Posts : 474
    Windows 7 Enterprise x64 SP1
    Thread Starter
       #5

    PSU Corsair CMPSU-620HX 620-Watt HX Professional Series Modular
      My Computer


 

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