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  1. #1
    Macbook Pro Hard Drive - Replacement Won't Format
    Today I tried to upgrade my MacBook Pro (15", 2007 Core 2 Duo) hard drive and ran into a wrinkle. The replacement hard drive I'm using is:

    Western Digital AV-25 WD5000BUDT 500GB 5400 RPM 32MB Cache - Western Digital AV-25 WD5000BUDT 500GB 5400 RPM 32MB Cache 2.5" SATA 3.0Gb/s Internal AV Hard Drive -

    The physical installation went fine, and the machine rebooted from my Leopard installation disk as expected. The problem started when trying to format the HD using Apple's disk utility. There are two problems here:

    1) The utility recognizes the drive with the proper hardware name, but says it is a 3.6TB drive. Clearly this is wrong.

    2) Every time I try to format the drive, I get an "input/output" error. This happens almost immediately when I hit the erase button. I've tried multiple partitions, different drive formats, mix/matched in every way I can think of and still get the same, immediate error.

    Before I send this back for a replacement, I wanted to reach out for any suggestions you guys may have. I'm assuming this is either a busted drive, a poor connection (which I've checked and still gotten the same error), hardware incompatibility (will an AV drive not work in a laptop?), or something to do with the Advanced Formatting on this WD drive.

    The last thing I want to do is send this back and have the same problem next week. Any help would be much appreciated. Thanks!


  2. #2
    Macbook Pro Hard Drive - Replacement Won't Format
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    Your Mac's Specs
    iMac, i7 4GHz, 32GB memory, 1TB Blade Drive, OS X.15.4,.
    Rep Power
    Have you set the drive up as GUID under Options in the Partition window and then tried formatting Mac OS Extended (Journalled)?

    It is always possible the drive has failed even new out of the box.

  3. #3
    Yes, I selected the GUID option and still got the same error.

  4. #4
    Macbook Pro Hard Drive - Replacement Won't Format
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Catalina
    Rep Power

    Send it back. An AV drive is probably not compatible for use in your MacBook Pro. You bought the wrong drive. That drive is specifically designed to work with a DVR or other video surveillance equipment.

    This is what you need. LINK

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