iMac doesn't show eternal Hd via usb

Discussion in 'iMac' started by theslaz, Nov 22, 2013.

  1. theslaz macrumors 6502

    Joined:
    Dec 12, 2009
    Location:
    Calgary; Alberta; Canada
    #1
    Running a Imac Mavericks. I have attached a Mediasonic Probox 4 bay Hd enclosure with four Sata Hd inserted. Everything has been working just fine for the past 18 months when I set this up. About a month ago; one of the Hd’s quit showing up on my desktop and in Finder. However; if I should fail to eject that Hd properly; an error message will pop up stating that I failed to eject that Hd properly. Pretty hard to eject it when it doesn’t show any where!

    I did some experimenting. I turned of the enclosure for a few hours and than turned it back on; and the said Hd showed up. However; I had the same problem later. I also removed the other three Hds and just ran the one in question. It showed. However; when I inserted the other three; I had the same problem.

    I tried connecting the enclosure to my MacBook Pro and nothing showed at all. However; that is a different problem for a different post.

    Any ideas? I suspect maybe a heat problem; and I will experiment with that. The Hd in question is the smaller of the four at 320 gig. I have already backed it up.
     
  2. rickce macrumors newbie

    Joined:
    Nov 22, 2013
    Location:
    London, UK
    #2
    Hello,

    Does the disk show up in Disk Utility?
     
  3. theslaz thread starter macrumors 6502

    Joined:
    Dec 12, 2009
    Location:
    Calgary; Alberta; Canada
  4. rkaufmann87 macrumors 68000

    rkaufmann87

    Joined:
    Dec 17, 2009
    Location:
    Folsom, CA
    #4

    Rest the SMC at least 2-3 times back to back and if that does not work please switch out the USB cable you are using.
     
  5. theslaz thread starter macrumors 6502

    Joined:
    Dec 12, 2009
    Location:
    Calgary; Alberta; Canada
    #5
    Rebooting the computer worked. Thanks
     

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