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Cannot connect wd 250gb my passport essential to PC

By Lynda ยท 5 replies
Aug 31, 2009
  1. took this back to shop as would not connect to my pc. windows media center edition (xp). they tried it on laptop and desktop in store and worked straight away.
    Any ideas why I can't connect, tried it in front and back USB ports.
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    Is XP updated to Service Pack 3? Do other USB devices work on this computer?
  3. EXCellR8

    EXCellR8 The Conservative Posts: 1,835

    the WD passport hard drives are considered "high-power" USB devices, which means that not all ports will be able to run them. there is a certain amount of power (can't remember off the top of my head) that is required to run the drive and not all USB ports are powerful enough. unless the drive has worked before on your computer, then you might not have ports that are capable of powering the device.
  4. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,244   +234

    That external drive may have an AC adapter that will supply additional connection power. I hope it isn't an optional not supplied device
  5. LookinAround

    LookinAround Ex Tech Spotter Posts: 6,491   +183

    I'll add.... that the WD Passports are particularly bad for this problem.

    1) They;'ve been to known to EXCEED the USB hi powered spec (500mA)
    2) Compounded by sometimes a computer (more so laptops) don't exactly meet the 500mA spec for their own USB hi powered ports

    Google for USB 1000mA
    Buy an external USB hub that can supply 1000mA (i.e. exceeding the 500mA USB spec).

    /* EDIT */
    P.S. I think is useful to have such a hub around (i bought one myself when testing and found this exact problem with a friends WD Passport btw!)
  6. Lynda

    Lynda TS Rookie Topic Starter

    Thanks All, but seems to have resolved itself. After about 4 hours of carrying on with what I was doing, went to do a disk clean up for my internal hard drive and was asked which hd i wanted to clean, hd or my passport!!! Don't know how or why but is connecting now.
    btw cannot "safely remove hardware" as it gives a message saying still working or something to that effect, so have to "unsafely remove it"
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