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  1.    23 Jun 2016 #1
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free

    The Revenge of the BSOD - Random BSOD Strikes Back


    Hey all, some of you might remember me from a long post a few months ago about random but frequent BSODs. After a long and grueling troubleshooting process (shoutout to essenbe and axe0 for being super helpful) I found that my motherboard power cable was loose inside the case. Embarrassingly but also thankfully, I thought I'd resolved the issue and I ran into no troubles for a while. But, it looks like my computer won't have that. A few weeks ago I ran into a random hardware issue BSOD, it was pretty traumatizing because I thought I'd have to go through the huge process from before all over again but I decided it was just some one off thing and did nothing about; then, it crashed again yesterday. So, I decided to open the case and make sure all the cables were in place which I did and they were. Now however, I just had ANOTHER crash. So, I'm pretty upset and hope its something easily identifiable so I can fix this damn machine. Anyways, DM log is attatched, should I run memtest overnight? I was considering it before but I forgot about it. Anyways, hey again guys, hope you've all been well and hope I can get some help

    Attachment 86499
      My ComputerSystem Spec
  2.    23 Jun 2016 #2
    Join Date : Nov 2015
    Posts : 2,954
    64bit Win 10 Pro ver 1709 Build 16299.125

    I would definitely run memtest86+ overnight. Today's crash dump shows possible memory corruption:

    Code:
    BugCheck A, {0, 2, 0, fffff801b66ed59d}
    
    Probably caused by : memory_corruption ( nt!MiCaptureProtectionFromLockedProto+21 )
      My ComputersSystem Spec
  3.    23 Jun 2016 #3
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free
    Thread Starter

    Alrighty, will do and post back with results
      My ComputerSystem Spec
  4.    24 Jun 2016 #4
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free
    Thread Starter

    So, looks like my RAM is thoroughly diseased. Got 292 errors after running Memtest for 10 passes last night. Now, as I understand it, I have to test the individual sticks and all my DIMM slots to see which are bad correct? How exactly would I do this now, should I remove one stick and run memtest on the other stick and switch the slot everytime until I've done all four and repeat with the other stick? That seems incredibly time consuming.... Do I have to run with 8 passes for each?
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  5.    24 Jun 2016 #5
    Join Date : Nov 2015
    Posts : 2,954
    64bit Win 10 Pro ver 1709 Build 16299.125

    I would run the sticks one at a time, you may find that the bad stick(s) show up quite quickly in which case you can stop the test straight way and move onto the next. I think it is less likely that the slots will be faulty.
      My ComputersSystem Spec
  6.    24 Jun 2016 #6
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free
    Thread Starter

    It looked like a majority of the errors showed up in the third pass. So, I should take one stick out, run the other in every slot and check if I get any errors? If none come up does that mean I have to keep running it for 8 passes to make sure? Also, is there anything I have to do in the BIOS or software side when I'm taking RAM out or do I just turn the PC off and take the stick out then run memtest?
      My ComputerSystem Spec
  7.    24 Jun 2016 #7
    Join Date : Nov 2015
    Posts : 2,954
    64bit Win 10 Pro ver 1709 Build 16299.125

    You should run each stick in slot 1 to test the stick, if one fails then that is the bad one. If both fail repeat the test in slot 2 to make sure it is not slot one that is faulty. You do need to run for 8 passes but of course as soon as there is a failure stop the test and move on. As you know, turn off the PC and ground yourself when handling the memory. The memory should be detected automatically and MEMtest will run. If it does not you can check in the BIOS that the stick has been detected and if necessary try another slot.
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  8.    24 Jun 2016 #8
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free
    Thread Starter

    I see, that clears it up thanks. I'll go do that and check back with results
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  9.    24 Jun 2016 #9
    Join Date : Jun 2015
    Posts : 12,958
    Windows 10 Pro

    Good advice from @philc43

    Also, is there anything I have to do in the BIOS or software side when I'm taking RAM out or do I just turn the PC off and take the stick out then run memtest?
    Only thing that needs to be done is making sure everything of the memory: frequency, voltage & timings, are running stock, if that is the case then you do not have to do anything
      My ComputersSystem Spec
  10.    26 Jun 2016 #10
    Join Date : Oct 2015
    Posts : 103
    Microsoft Windows 10 Home 64-bit 10240 Multiprocessor Free
    Thread Starter

    So, after lengthy testing over two days, I've pretty much confirmed that one of my sticks (let's call it R2) is bad. I followed philc43's advice and tested one stick (R1) in all four slots first. With that I found no errors - pretty much confirming that neither the stick nor the slots were bad and by process of elimination confirmed that R2 was faulty. But I wanted to make sure so I tested R2 in the first slot for good measure. Problem was, I got no errors. Then, I decided to test it in the second DIMM slot and left memtest running overnight which resulted in it running for about 19 passes. The good news was that memtest found some errors on the 16th pass :O

    Again, I wanted to make sure so I ended up testing R2 in all of the slots also and got errors in slots 3 and 4. The errors seem to come up at random passes, sometimes very late (like with the second slot) and sometimes very early like with slot 4 when they came up in the first pass. Here's a table that may clarify the results better:

    RAM 1 RAM 2
    Slot 1 No errors - Ran 10 Passes No errors - Ran 9 Passes
    Slot 2 No errors - Ran 12 Passes Errors detected on 16th pass - Ran 19
    Slot 3 No errors - Ran 20 Passes Errors detected on 7th pass - Ran 8
    Slot 4 No errors - Ran 8 passes Errors detected on 1st pass - Ran 1

    So, am I correct to assume that R2 is the bad stick and that I should buy new RAM? Or could there be another cause for the BSODs? Like it says in the dm log, some of the crashes weren't related to hardware failure, could the others be caused by hardware failure but not be indicated as such because something else failed as a result of the RAM beforehand?
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