I/O Errors on WD Scorpio Black *HELP*

Discussion in 'MacBook Pro' started by cutarecord, Jan 8, 2011.

  1. cutarecord macrumors newbie

    Jan 8, 2011
    Three days ago a noisy fan brought me to the Genius Bar at my Apple store and when i got there the boot screen stayed gray and had a folder with a question mark in it. I have a late 2006 15" MPB running Snow Leopard 10.6.6. The guy told me i need a new hard drive so i went out and bought a Western Digital Scorpio Black 320g 7200 rpm SATA drive with a 16 mb cache. I replaced the old one with it, formated and installed OSX 10.6. I then used my time capsule to recover my last back up. I completely restored it.


    Now, i have the annoying fan noise again and my console is telling me that my HDD is having disk0-02 i/o errors. A LOT OF THEM. I've had at least 30 before noon today. Currently i am writing zeros to my drive and going to reinstall 10.6 WITHOUT using my time capsule restore (incase that has bad blocks written to it)

    Has any one heard of issues like this before with the particular HDD i bought? Two HDD failures two days apart seems fishy to me, what other issues should I be looking at? Is it possible i'm getting the i/o errors from a bad HDD ribbon cable to the logic board?

    Any help you can offer on this is MUCH appriciated...

    :apple: Mike
  2. RaceTripper macrumors 68030

    May 29, 2007
    I had this happen to me a while back. It was a bad I/O controller and required a new motherboard.

    Making sure the cable to the HD is seated properly is a good first step to troubleshooting/solving the problem.
  3. cutarecord thread starter macrumors newbie

    Jan 8, 2011

    is there a way to test that so i'm sure that is what the issue is?
    How much did that cost you?
  4. RaceTripper macrumors 68030

    May 29, 2007
    I suppose you could try running the hardware diagnostics from your original system DVD.

    I paid nothing for my repair since I had AppleCare on the machine.
  5. cutarecord thread starter macrumors newbie

    Jan 8, 2011
    the system diagnostics will tell me if i have a bad i/o reader?

    my apple care ran out three months ago :(
  6. cutarecord thread starter macrumors newbie

    Jan 8, 2011
    *controller sorry, my brain has a faulty language controller
  7. RaceTripper macrumors 68030

    May 29, 2007
    I don't know. Doesn't cost anything but time to run it.

    When I had the problem, the Apple Genius decided my Mac had a bad I/O controller (I agreed), and it was repaired by replacing the logic board.
  8. Detrius macrumors 68000

    Sep 10, 2008
    Asheville, NC
    Sometimes, the cables go bad too. That's worth looking into.

    Ultimately, the best way to know is test the HD in the computer and then test the HD connected to another known good computer.

    Also, if zeroing the drive makes a difference, you have a bad drive and should get it replaced. Zeroing the drive, or rather, writing anything to it, causes it to remap the bad sectors. You can see if the drive is aware of any bad sectors or if it has fixed any by looking at the smart table.


    "Current pending sectors" are sectors that have not yet be remapped. "Reallocate event count" or "Reallocated sectors" are bad sectors that have been remapped. Anything other than zero on any of these means your drive is showing signs of failure.

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