1.    16 Sep 2016 #1
    Join Date : Sep 2016
    Posts : 10
    Windows 10

    USB 3.0 Seagate SATA External Hard Drive Not Recognized Win. 10


    I recently purchased a Seagate Momentus 5400.6 hard drive and a Sabrent USB 3.0 SATA Hard Drive flat docking station to connect via usb to my Dell XPS L702x laptop. Upon putting the hard drive in the external enclosure and connecting to my laptop via usb my computer is not recognizing this external hard drive in disk management. I can see it in device manager and it is listed as "Jmicron SCSI Disk Device". I can also see it in devices and printer listed as "Jmicron". However it is not recognized or listed in disk management and file explorer. I am a novice when it comes to hardware issues as I am more of a software guy but I have tried everything I can find on the net to no avail. ie uninstalling and installing the drivers, using seagate utilities (I cannot also see it in Seagates applications), disabling fast startup, windows devices and printers troubleshooting, etc. I suspect (maybe incorrectly) that this device is showing up as "Jmicron SCSI disk device" instead of a SATA drive but that is coming from someone who again does not know alot about the device/hardware side. I would like to make this external drive a full backup for my windows 10 laptop and any assistance that could be provided would be GREATLY appreciated. Thanks for any help you may be!
      My ComputerSystem Spec
  2.    17 Sep 2016 #2
    Join Date : May 2015
    Central IL
    Posts : 4,052
    Mac OS Sierra

    Most likely not enough power for the USB port. Get a Powered hub like the Orico 4 Port.
    Last edited by bro67; 17 Sep 2016 at 10:52.
      My ComputerSystem Spec
  3.    17 Sep 2016 #3
    Join Date : Oct 2014
    Posts : 931
    Windows 8.1, Win10Pro

    If your PC only has USB 2.0 ports, then you wasted money getting a USB 3.0 driver enclosure as the slow speed of your ports will limit the file transfer rate.

    I have only UN 2.0 ports on my laptop, so I have a USB 2.0 portable drive case.

    However, I also have a WD USB 3.0 external portable drive and it connects just fine to USB 2.0 ports.

    So, I guess it depends on the individual drive enclosure whether or not it will work with USB 2.0 ports.
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  4.    17 Sep 2016 #4
    Join Date : May 2015
    Central IL
    Posts : 4,052
    Mac OS Sierra

    Quote Originally Posted by Mark Phelps View Post
    If your PC only has USB 2.0 ports, then you wasted money getting a USB 3.0 driver enclosure as the slow speed of your ports will limit the file transfer rate.

    I have only UN 2.0 ports on my laptop, so I have a USB 2.0 portable drive case.

    However, I also have a WD USB 3.0 external portable drive and it connects just fine to USB 2.0 ports.

    So, I guess it depends on the individual drive enclosure whether or not it will work with USB 2.0 ports.
    Actually not. The 3.x gear is about all that you can get these days. It also has better buffering for speeding up the transfers on backwards compatible.

    I guess that I wasted money on all of the gear that has USB 3.x, including my main laptop.
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  5.    17 Sep 2016 #5
    Join Date : Sep 2016
    Posts : 10
    Windows 10
    Thread Starter

    It is a powered external enclosure. I thought that was the issue doing my research as I originally had it in an stand-alone (? - basically I will say no power supply) ORICO enclosure and it was using 2.0 because when I brought it up in devices and printers it said something to the effect that this drive will run faster using usb 3.0. So I broke down and bought a SABRENT EC-DFLT powered enclosure. I chose this docking station because it had good reviews (of course based on someones opinion) and was relatively inexpensive. Sorry to save have the same basic problem as before. I don't know why I didn't think of this before but I have an older Dell with Windows 7 on it and I am going to plug it in to that machine when I get a chance to see if I can see it on this machine at least. I will let you know what I find out.

    Thanks again!
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  6.    17 Sep 2016 #6
    Join Date : Apr 2016
    Manchester, U.K.
    Posts : 533
    Windows 10 Pro 64bit

    Does it show if you open cmd prompt/w admin diskpart>list disk?
    If so can you run clean & then see if it appears under disk management? - there should be a pop up saying it requires initialising.
    I have a HD in an enclosure & it gives the name of said enclosure rather than the HD name/manufacturer.
      My ComputerSystem Spec
  7.    19 Sep 2016 #7
    Join Date : Sep 2016
    Posts : 10
    Windows 10
    Thread Starter

    Actually just figured this out. What I did was plug the external hard drive into an older dell I have running windows 7 and this machine recognized it in disk management. However would not let me assign a drive letter for it - would only let me "delete volume". So i did some thinking on this and not really knowing if I initialzed it or not took a chance and deleted volume for this drive. It gave me some created by "non microsoft" warning when I was doing this and it advised it was not recoverable. SO I deleted, was able to assign it a drive letter, format drive and then I unplugged and took it to my windows 10 machine and it recognized it right away. Doing a full system backup on it right now using seagate dashboard. So i am good! Thanks
      My ComputerSystem Spec
  8.    20 Sep 2016 #8
    Join Date : May 2015
    Central IL
    Posts : 4,052
    Mac OS Sierra

    You never want to assign a drive letter to a portable storage device. When you go back and forth between machines, it is going to come down to what you originally have been dealing with.
      My ComputerSystem Spec

 


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