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Caddy HDD disconnects when external power is conneted

Discussion in 'Hardware' started by wbruyn, Jul 17, 2018.

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  1. wbruyn

    wbruyn Thread Starter

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    I have a –at least for me- a very strange situation.

    I hope to find in this forum some answers (or directions to seek further) from people with the right knowledge.

    Lets first explain the configuration:

    - Lenovo laptop, Thinkpad E550, 8Gbyte RAM.

    - SSD drive containing Windows 10, latest version

    - Latest version UEFI

    - In the DVD bay a caddy with a SATA HDD, 500Gbyte

    What happened:

    1. With the external power disconnected the laptop boots normal.
    The HDD is shown as a USB device.
    The system works as expected.

    2. As soon as the external power is connected, within 15 seconds the HDD disconnects.
    After this has happened, the system refuses to boot or reboot.
    Boot or reboot is possible as soon as the external power is disconnected again

    What puzzles me is:

    a. Why shows the caddy HDD up as a USB?
    I have another laptop with a caddy and there the HDD is just a second SATA disk
    So I think when I can come with the Lenovo to a point where the HDD shows up as a SATA HDD my problem is solved

    b. Is the caddy defining the device type?
    I mean when the DVD is put into place again, the OS “sees” a ATA device which is correct.
    As soon as the DVD is replaced by the caddy, the OS “sees” a USB device.

    c. If it is the caddy defining the device, can caddy’s be ordered with a specific device?
    In my case this should then be a SATA device.

    I spend already days on the internet, had contact with the Lenovo helpdesk, had contact with the caddy reseller, spend hours in changing Windows and UEFI settings.

    Nothing changed the behavior as described above.

    So who on this planet can provide the right answer(s)?
     
  2. managed

    managed Trusted Advisor Spam Fighter

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    Hi wbruyn and welcome to TSG.

    Does the Bios see the caddy HDD as a USB device ?
     
  3. wbruyn

    wbruyn Thread Starter

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    Thanks for your response.


    During boot, the boot screen reports two disks:

    - Samsung SSD EVO 250Gb

    - ST500LM00-SSHD-8Gb


    When entering the UEFI, the screen “Boot priority” reports two disks:

    - ATA Samsung SSD EVO 250 Gb

    - ATA ST500LM000-SSHD-8Gb


    When Windows 10 is up and running, the show hidden icons menu (in the right hand corner of the desktop screen) displays the icon “Safely Remove Hardware and Eject Media”.

    This is an USB device and definitely the Caddy HDD.

    When clicking to remove, my caddy HDD disappears.
    To appear again, a reboot is needed.


    I hope this gives you some more information.


    Regards

    Wim Bruyn
     
  4. managed

    managed Trusted Advisor Spam Fighter

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    That 500GB drive is a hybrid type and it seems to only detect the 8GB SSD part of it.
    What is shown for that drive in Disk Management ? (a screenshot would be good).
     
  5. wbruyn

    wbruyn Thread Starter

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    I tested 3 different HDD's in the caddy. Not any difference in the behavior of the laptop with those drives.
    I can use the hybrid HDD as a normal disk, until I connect the external power of course, than the drive disconnects within 15 seconds.

    Another external USB HDD connected to a regular USB of the laptop port keeps working under all circumstances.

    I am still puzzled with the question which mechanism decides/determines that the caddy becomes a usb drive i.s.o. a SATA drive.
    As I mentioned before, another laptop with a caddy has no problem. The caddy HDD is just another SATA device.
    I just verified disk management on that PC and it looks exactly as the one below

    Below the screenshot you requested.

    upload_2018-7-19_13-50-54.png
     

    Attached Files:

  6. wbruyn

    wbruyn Thread Starter

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    Some additional info.

    Executing scenario below:
    1-Boot laptop without external power connected.
    2-Disk management shows both disks (SSD and Caddy HDD)
    3-Connect external power.
    4-Nothing happenes
    5-Open Ms Word and start typing a new document.
    6-One can do that as long as they wish.
    7-Now save document to Caddy HDD (Save As).
    8-The Caddy HDD disappears instantly.
    9-Disk management, which is still open displays only the SSD.
     
  7. managed

    managed Trusted Advisor Spam Fighter

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    You already tried other HDDs in the caddy and they also behave in the same strange way ?
    Can you connect an optical drive in place of the caddy and check if that is seen as a Usb device ?
    I suspect it's normal for that laptop to see devices on that connector as Usb but the above should confirm that or not.

    Check the Windows power settings for Usb.
     
  8. wbruyn

    wbruyn Thread Starter

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    To answer the questions:
    1- All HDDs behave the same way
    2- I did that already, the optical drive was not an USB device
    3- I did checked the USB power settings before. I thought it was only available in the Windows power settings menu.
    However in the device manager I now discovered (did not know :) ) that there also are some settings regarding USB power management.
    I deselected "Allow the computer to turn off this device to save power" for the USB Root Hub (USB 3.0) and the Intell USB 3.0 Extensible host controller For USB 2.0 they were already deselected.

    This looks as the solution. The Caddy HDD now stays alive when external power is connected. System boot with external power connected is function now. File access on the Caddy HDD is working fine.
    The Caddy HDD still is an USB device.

    I will monitor the system a few days to see if this is a permanent and solid situation.
    I let you know the outcome.
    So far thanks a lot for your support.
     
  9. managed

    managed Trusted Advisor Spam Fighter

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    Looks good so far. Very strange it doesn't see an Optical drive as Usb. My guess is that's a quirk of the laptop's design.

    You're welcome and do let me know if it's still good after a few days please.
     
  10. wbruyn

    wbruyn Thread Starter

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    I did a lot of work on the HDD yesterday, reorganizing the drive. Copied thousands of photo's, deleted hundreds of files, rebooted the laptop many times. All is working smoothly.

    So I think we could say the problem is solved.
    Strange that in fact Windows decides to switch USB power off when external power is supplied to the system. Should be the opposite in my opinion. A glitch in Windows 10?

    Anyway, thanks again a lot for the support, I am a happy camper again.
     
  11. managed

    managed Trusted Advisor Spam Fighter

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    Glad it seems fixed now.

    It was a very strange issue, never heard of anything like it before. It made a nice change.

    You're welcome. (y)

    (When/if you're sure it's fixed please use the Mark Solved button at the top of the page).
     
  12. wbruyn

    wbruyn Thread Starter

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    I very much regret that I have to recall that the problem is solved.

    I am just on holiday and started building a Photo book on the laptop. Same problem just appears again and is again reproducible.
    Everything is working fine until I connect the external power. After about 10 seconds the USB device disappears (switched of by Windows?)
    I triple checked the modifications, they are all there and the same as a few days ago.

    So I am back on square one.
    Can we look at specific windows loggings to see if windows indeed switches the USB power off?

    Regards
    Wim Bruyn
     
  13. managed

    managed Trusted Advisor Spam Fighter

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  14. wbruyn

    wbruyn Thread Starter

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    I am on holiday now and often no access to WiFi.

    I will respond to you after my holiday.

    Regards
    Wim Bruyn
     
  15. managed

    managed Trusted Advisor Spam Fighter

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    Ok, no rush. Enjoy your holiday. :)
     
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