butonpro

Q: external hp hard disk doesn't show in mac book pro retina

Hello everybody,

 

got a problem with my external hp hard disk. The external hard disk is formatted in mac os system and works perfectly in my iMac (mid 2011 , full updated with  Capital) as well as to another mac book that i tried (mid 2012). Nevertheless the hard disk won' t show up (neither in utilities , nor in the usb port) in my mac book pro (Retina, 13-inch, Early 2015, el capital).

 

Can somebody help me out??

 

I don't want to format my disk cause it works perfectly in all other macs i' ve tried it and it's just my new mac book pro that seems to have a problem with this hard disk...

 

thanx a lot in advance!

MacBook Pro with Retina display, iOS 9.2

Posted on Dec 16, 2015 6:27 AM

Close

Q: external hp hard disk doesn't show in mac book pro retina

  • All replies
  • Helpful answers

  • by lllaass,

    lllaass lllaass Dec 16, 2015 6:56 AM in response to butonpro
    Level 10 (188,811 points)
    Desktops
    Dec 16, 2015 6:56 AM in response to butonpro

    External Drive

    - Is the drive self-powered, that only powered by the USB bus? If so it could be that the USB port does not provided enough power. You can try a powered USB hub. You can also get a USB pigtail that takes power from to USB ports to the single USB port on the drive.

    - Does it show in Disk Utility?

    - You said "nor in the usb port". Does that mean it does not show in System Profiler under USB? You should see the chipset in the enclosure as well as the HD itself

    OS X: About System Information and System Profiler - Apple Support

    - Have you tried all the USB ports?

    Do the USB ports work for other external HD?

  • by butonpro,

    butonpro butonpro Dec 16, 2015 7:13 AM in response to lllaass
    Level 1 (0 points)
    Dec 16, 2015 7:13 AM in response to lllaass

    thx you very much for answering!

     

    - The drive is powered only by the USB port. Is it possible that the new mac book pro  usb ports provide less power than other older mac models? seems kind of strange. I will try buying a powered usb hub but i wanted to rule out any other possibilities before buying something (and then seeing that it doesnt work )

     

    - When i plug the disk , the disk works (blue light + noise as normal)

     

    - Yes, I meant  in the System Profiler ( see print screen while disk connected) , doesnt show up at all

     

    Screen Shot 2015-12-16 at 17.09.32.png

     

    - tried all usb ports

     

    - Other disks have worked fine in the past , I am anyways going to try more as soon as i find

     

    any idea ...?

  • by lllaass,

    lllaass lllaass Dec 16, 2015 7:48 AM in response to butonpro
    Level 10 (188,811 points)
    Desktops
    Dec 16, 2015 7:48 AM in response to butonpro

    - Try resetting the SMC and NVRAM/PRAM

    Intel-based Macs: Resetting the System Management Controller (SMC)

      About NVRAM and PRAM


    Also try other USB external disks