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Solved: External hard drive detected but not under my computer or disk management

Discussion in 'Hardware' started by sarpedonides, Mar 26, 2015.

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  1. sarpedonides

    sarpedonides Thread Starter

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    I have had the same Toshiba external hard drive for years and have never had any problems plugging and using from any machine, mac or pc. I recently had to reformat my hard drives and re-install windows 7, and ever since I have been unable to access my external from this machine. It still works fine on my laptop, and when I plug it in to my tower, it still recognizes that "External USB 3.0" has been plugged in and downloads the drivers. However, the drive appears neither under my computer nor disk management, nor diskpart -> list volume. It does show up in my device manager as USB mass storage but uninstalling the drivers and plugging it back in does nothing. Is there anything I can try before moving all my files off and formatting the drive, and will that even help? Thanks for reading.
     
  2. managed

    managed Trusted Advisor Spam Fighter

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    What file system is the external hard drive using ? What OS is on the laptop that can still use the external HD ?
     
  3. sarpedonides

    sarpedonides Thread Starter

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    The external is NTFS, the laptop is running Windows 7 as well, both 64 bit.
     
  4. managed

    managed Trusted Advisor Spam Fighter

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    The Tower has the problem then. Does it (try to) install Usb 3.0 drivers every time you connect it to the Tower ?
     
  5. sarpedonides

    sarpedonides Thread Starter

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    Nope, it installed it the first time successfully. If I uninstall the drivers and unplug/plug back in it just installs them again, no difference.
     
  6. managed

    managed Trusted Advisor Spam Fighter

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    Ok, if there's nothing on it you still need connect it to the laptop and in Disk Management delete the partition(s) then make new partition(s) and format NTFS and see if it shows up on the Tower after that.
     
  7. sarpedonides

    sarpedonides Thread Starter

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    I would have done that but this external is full of files and movies from the last few years that I don't want to lose and it's nearly full. I would transfer them onto my tower but can't do so with it not being detected. My laptop is only a 120gb SSD so that's not an option either. Any other suggestions? If not can you refer me to someone/somewhere who might be able to help me out?
     
  8. KomputerKid

    KomputerKid

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    Please download and run Speccy http://www.piriform.com/speccy
    After it runs click File, Publish Snapshot, then paste the link provided here. Let's see if Speccy recognizes it and can analyze it.
     
  9. sarpedonides

    sarpedonides Thread Starter

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  10. KomputerKid

    KomputerKid

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    It detected it but it comes back Status Unknown and didn't analyze it at all. Have you tried updating the chipset drivers for your MB?

    DiskCheckup is a better tool to check the SMART values on the HDD. You can download it here. http://www.passmark.com/ftp/diskcheckup.exe
     
  11. sarpedonides

    sarpedonides Thread Starter

    Joined:
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    This is what I get with diskcheckup on that drive:


    *** DiskCheckup V3.3 Build: 1000 Report ***

    SysInfo DLL Version: SysInfo v1.0 Build: 1090
    Time of export: 18:15:00 29-Mar-2015

    Device information:
    Device ID: 3
    Interface: USB
    Device Capacity: 953867 MB
    Serial Number: 23L5FC3TS
    Model Number: TOSHIBA MQ01ABD100
    Firmware Revision: AX001U
    Partitions:
    N/A

    ATA information:

    Disk geometry:
    Cylinders: 121601
    Tracks/Cylinder: 255
    Sectors/Track: 63
    Bytes/Sector: 512
    Total disk sectors: 1953525168
    Logical sector size: 512
    Physical sector size: 4096
    Media rotation rate: 5400 RPM
    Buffer size: 8192 KB
    ECC size: 0 Bytes

    Standards compliance:
    ATA8-ACS Supported: Yes
    ATA/ATAPI-7 Supported: Yes
    ATA/ATAPI-6 Supported: Yes
    ATA/ATAPI-5 Supported: Yes
    ATA/ATAPI-4 Supported: Yes
    Serial/Parallel: Serial
    SATA 3.0 Compilance: No
    SATA 2.6 Compilance: Yes
    SATA 2.5 Compilance: Yes
    SATA II: Ext Compilance: Yes
    SATA 1.0a Compilance: Yes
    ATA8-AST Compilance: Yes
    World Wide ID: 5000039496988F0F

    Feature support:
    SMART supported: Yes
    SMART enabled: Yes
    SMART self-test supported: Yes
    SMART error log supported: Yes
    LBA supported: Yes
    IORDY supported: Yes
    CFast supported: No
    DMA supported: Yes
    Maximum Multiword DMA mode supported: 2
    Multiword DMA selected: None
    Maximum UltraDMA mode supported: 5
    UltraDMA selected: 4
    Maximum PIO mode supported: 4
    SATA Compliance: Yes
    NCQ priority information supported: No
    Unload while NCQ commands are outstanding supported: Yes
    Phy Event Counters supported: Yes
    Receipt of power management requests supported: Yes
    NCQ feature set supported: Yes
    SATA Gen2 Signaling Speed (3.0Gb/s) supported: Yes
    SATA Gen1 Signaling Speed (1.5Gb/s) supported: Yes
    Software Settings Preservation: Supported, Enabled
    In-order data delivery: Not supported
    Initiating power management: Supported, Disabled
    DMA Setup auto-activation: Supported, Disabled
    Non-zero buffer offsets: Not supported
    Trusted Computing supported: No
    Host Protected Area (HPA) supported: Yes
    Read look-ahead supported: Yes
    Read look-ahead enabled: Yes
    Write cache supported: Yes
    Write cache enabled: Yes
    Power management supported: Yes
    Security mode supported: Yes
    Security mode enabled: No
    Device Configuration Overlay (DCO) supported: Yes
    48bit Addressing supported: Yes
    Auto Acoustic Managment (AAM) supported: No
    Power-up in Standby (PUIS) supported: No
    Advanced Power Management (APM) supported: Yes
    Advanced Power Management (APM) enabled: Yes
    Current APM level: Minimum power consumption without Standby
    CompactFlash Association (CFA) supported: No
    General Purpose Logging (GPL) supported: Yes
    Streaming supported: No
    Media card pass through supported: No
    Extended power conditions supported: No
    Extended status reporting supported: No
    Write-read-verify supported: No
    Free-fall control supported: No
    TRIM command supported: No
    SCT command transport supported: Yes
    NV Cache enabled: No
    NV Cache Power Management supported: No

    SMART ATTRIBUTES:
    ID Description Status Value Worst Threshold Raw Value TEC
    ---------------------------------------------------------------------------------------------------------------------------------------------
    1 Raw Read Error Rate OK 100 100 50 0 N.A.
    2 Throughput Performance OK 100 100 50 0 N.A.
    3 Spin Up Time OK 100 100 1 2636 N.A.
    4 Start/Stop Count OK 100 100 0 1510 N.A.
    5 Reallocated Sector Count OK 100 100 50 0 N.A.
    7 Seek Error Rate OK 100 100 50 0 N.A.
    8 Seek Time Performance OK 100 100 50 0 N.A.
    9 Power On Time OK 83 83 0 7097 N.A.
    10 Spin Retry Count OK 130 100 30 0 N.A.
    12 Power Cycle Count OK 100 100 0 365 N.A.
    191 G-sense Error Rate OK 100 100 0 3 N.A.
    192 Power off Retract Count OK 100 100 0 38 N.A.
    193 Load Cycle Count OK 100 100 0 3017 N.A.
    194 Temperature OK 100 100 0 31 C N.A.
    196 Reallocation Event Count OK 100 100 0 0 N.A.
    197 Current Pending Sector Count OK 100 100 0 0 N.A.
    198 Uncorrectable Sector Count OK 100 100 0 0 N.A.
    199 UltraDMA CRC Error Count OK 200 253 0 0 N.A.
    220 Disk shift OK 100 100 0 0 N.A.
    222 Loaded hours OK 100 100 0 137 N.A.
    223 Load/Unload retry count OK 100 100 0 0 N.A.
    224 Load friction OK 100 100 0 0 N.A.
    226 Load-in Time OK 100 100 0 193 N.A.
    240 Head flying hours OK 100 100 1 0 N.A.

    SMART HISTORY:
    Attribute ID: 1 Attribute Name: Raw Read Error Rate
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 2 Attribute Name: Throughput Performance
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 3 Attribute Name: Spin Up Time
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 4 Attribute Name: Start/Stop Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 5 Attribute Name: Reallocated Sector Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 7 Attribute Name: Seek Error Rate
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 8 Attribute Name: Seek Time Performance
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 9 Attribute Name: Power On Time
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 10 Attribute Name: Spin Retry Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 12 Attribute Name: Power Cycle Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 191 Attribute Name: G-sense Error Rate
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 192 Attribute Name: Power off Retract Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 193 Attribute Name: Load Cycle Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 194 Attribute Name: Temperature
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 196 Attribute Name: Reallocation Event Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 197 Attribute Name: Current Pending Sector Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 198 Attribute Name: Uncorrectable Sector Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 199 Attribute Name: UltraDMA CRC Error Count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 220 Attribute Name: Disk shift
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 222 Attribute Name: Loaded hours
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 223 Attribute Name: Load/Unload retry count
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 224 Attribute Name: Load friction
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 226 Attribute Name: Load-in Time
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history

    Attribute ID: 240 Attribute Name: Head flying hours
    Date Value Worst Raw
    ---------------------------------------------------------------------------------------------------------------------------------------------
    No history


    How do I check to see if my chipset is up to date? I just bought this mobo a few weeks ago and only installed the drivers off the disk it came with.
     
  12. KomputerKid

    KomputerKid

    Joined:
    Dec 25, 2014
    Messages:
    1,081
    Did get more information from that. It all looks good really. To update the chipset drivers just go to the manufacturer's website and look for updates. The drivers on the disk are usually if not always out of date. I'd do the same for all your hardware. Please don't attempt to use 3rd party updaters as almost all of them will put viruses or adware on your machine.
     
  13. sarpedonides

    sarpedonides Thread Starter

    Joined:
    Mar 22, 2015
    Messages:
    10
    I updated the chipset, restarted, uninstalled the drivers, unplugged, plugged it into a port in the back, drivers installed, and bam! It's all there. Thanks for the help, I was beginning to give up hope.
     
  14. KomputerKid

    KomputerKid

    Joined:
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    Messages:
    1,081
    Happy to help and thank you for the positive report.
     
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