BSOD Stop 50 Infrequently When Connecting USB Items/Restarting?


  1. wukong
    Posts : 5
    Windows 7 Home 64bit
       New #1

    BSOD Stop 50 Infrequently When Connecting USB Items/Restarting?


    I have a Dell Studio One 1909 All-in-One computer that infrequently has BSOD Stop 50.

    The BSOD seems to happen when the computer is restarted/or within windows when a USB flash drive/external drive is plugged in.(USB mouse and keyboard are fine) I have restarted over 10 times fine without various flash drives plugged in fine. When I connect a USB flash drive the BSOD then will occasionally come up. (May be coincidental?) The BSOD's don't happen in Windows and only when you restart/turn on the computer when the Windows logo appears.

    I have updated the BIOS and drivers. The computer does have Norton 360 which does seem to be working, but I can uninstall it if needed. I ran Memtest with 14 passes good and the Hard Drive passed the long test with WD Diag. The computer has Windows 7 Home 64bit installed. I have scanned for viruses using many different Anti-viruses and it did find some, but only PUP's. I ran chkdsk /r which fixed some and sfc /scannow which came up with no errors.

    The computer ran BurnInTest Pro 7.0 for an entire day without a single BSOD. The temps were fine as well.

    Attached is the SF Diagnostic Tool.
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  3. Boozad
    Posts : 6,741
    W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
       New #2

    First off, download and run MemTest86+ to test your RAM.

       Note
    Run MemTest86+ for at least 8 passes. Ideally set it off before you go to bed and leave it overnight, we're looking for zero errors here. A single error will show something's going bad with your RAM.
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  4. wukong
    Posts : 5
    Windows 7 Home 64bit
    Thread Starter
       New #3

    Thanks for the response!

    Sorry I wasn't clear in my post, but I did use Memtest86+ Ver4.20 and got 14 passes good. I noticed in your link they had Ver5.01 so I will download that and let it run. I'll give updates when it finishes.
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  6. wukong
    Posts : 5
    Windows 7 Home 64bit
    Thread Starter
       New #4

    Alright, I ran Memtest86+ Ver5.01 over the weekend. It got 37 passes all good. Is there any other tips on figuring out what the culprit is now?
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  7. Boozad
    Posts : 6,741
    W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
       New #5

    Good news. Next step is to try to find out if any drivers are the underlying issue as there are no traces in your dump file.

    Driver Verifier will stress your drivers and cause BSODs if any fail. Follow this tutorial to enable/disable it. Driver Verifier - Enable and Disable

    Enable Driver Verifier but only enable these options:
    Standard settings and IRP logging step 3.
    Don't enable Force Pending I/O Requests

       Warning
    Make a System Restore point before enabling Driver Verifier.


       Note
    Your system will act very sluggishly while DV is enabled, this is normal as your drivers will be being subjected to heavy testing in order to make them crash.
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  8. wukong
    Posts : 5
    Windows 7 Home 64bit
    Thread Starter
       New #6

    I went through the tutorial and I didn't enable Force Pending I/O requests like you said. It booted up fine so I will run BurnIntest for 24hours and plug in some flashdrives to see if a BSOD happens.
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  10. Boozad
    Posts : 6,741
    W7 Pro x64 SP1 | W10 Pro IP x64 | W8.1 Pro x64 VM | Linux Mint VM
       New #7

    Try to hold off on the flash drives. Let driver verifier work your PC as it is for 24 hours or so first, then introduce flash drives to the equation.
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  11. wukong
    Posts : 5
    Windows 7 Home 64bit
    Thread Starter
       New #8

    Thanks for all your help so far! Alas, it has been running BurnInTest all day and with repeated restarts I am not getting another BSOD. (It's just too infrequent and with little info on it)

    I'm starting to think it's a hardware problem, but for now I will deal with the occasion BSOD since the computer is older.

    Thanks for all your input and time.
      My Computer
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