Question about Western Digital 250GB MyBook External USB 2.0 250 GB Hard Drive

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External Hard power is on but does not show up on my pc and does not seem to be running

Hi, My external hard drive powers up but does not show up on my pc, I don't think it's running it possible to retrieve the data on the hard drive? What do I need to do? I don't think the hard drive is under warranty anymore. Can I diassemble it and try to connect is an internal hard drive and try to copy the files that way? Please help!

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  • joce77 Oct 23, 2008

    same problem , no other machine to connect to

  • Anonymous Oct 27, 2008

    I think it's my usb cable, neither of my western digital externals will show up on either of my laptops. It did this awhile back and I bought a new cable,worked fine for a while, not it's out again.

    What could be happening to the cables?



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What do using to connect the external hard drive.
if you are using usb, try a differnt machine first.
yes. you can disassemble the hard drive and connect it as second hard drive on your machine. provided they are the same configuration IDE to IDE SATA to SATA.

Posted on Oct 15, 2008


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Does the external drive work when connected to some _other_ computer? (Friend? Office? Home?)

It could be a failure either in the "hardware" inside the external-case (the USB adapter & interface)
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So, a qualified technician can open the external drive, remove the disk-drive, and connect it directly to a computer, to see if the files can be "directly" read from the disk-drive.

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External Hard power is on but does not show up on my pc and does not seem to be running

Does it happen to be a Maxtor II? I had a very similar issue with my external and it devastated my backup program.

If the power light is coming on but not being recognized by the OS, your first step is (as you said) trying a different USB/Firewire cable. If that does not work and you don't care about voiding an expired warranty, you can open the case and remove the HDD. It will have several screws in the back; just undo them and slide it out. Try hooking the HDD up through IDE (or SATA if equipped) and after powering up, go into BIOS and see if it shows up on the IDE(SATA) list. If it doesn't, then as far as I know, your only other option is to try a pricey data recovery service.

Good luck!

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Maxtor external hard drive stopped working

How is it connected ? USB?
If you start w/o Maxtor connection is your PC starting correctly?
Is issue showing when you connect USB cable on working PC?

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My two front usb ports cant read usb hard drives

Some external USB drives require external power sources. Typically this is done either with an external power supply that connects to the drive or a second USB cable that connects to the drive and a second usb port on the pc. I have even seen one drive that comes with a Y cable. one end goes to the drive and the 2 usb plugs go to the pc.

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Does simple tech 250 drive need an external power source?

Yes, you need a power supply. I have several USB peripherals that, in a similar way, APPEAR to be on when you plug them into USB. But that interface cannot supply enough power to actually run the machine. The maximum is 0.5 A * 5 V = 2.5 W. The wee portable drives can run on that power, but a normal desktop drive, such as is inside a full-size desktop external enclosure, use ~ 8 W.

So you need a DC power supply! I bet SimpleTech can tell you what the correct current, voltage, and polarity is. Good luck.

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Why wont it work?

doesn't seem that "Simple" if you ask me. I don't think PC hard disks are compatible with Mac's. you might have to get a Mac compatible External HD.

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