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One of the 680M SLi might be dead after an update?

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Posted (edited)
My issue: one of the two 680M GPUs started displaying an "Windows has stopped this device because it has reported problems. (Code 43)".
My hardware: Clevo P37EM / Sager NP9370
My OS: Windows 10 Enterprise 2016 LTSB x64
I keep the OS always up-to-date (Windows LTSB only ships security and fix updates). I also have very few softwares installed. Basically, my computer was working normally, but today I was playing Overwatch (which I always play) and after some hours, I suddenly heard a Windows beep, the game froze and the computer restarted. When I was back at the desktop, I noticed the resolution was not right and then I opened the Device Manager to see that one of the 680M was giving a Error Code 43. Both GPUs appear on my BIOS setup, the BIOS correctly identifies them as 680M.
I found it strange, so I check my GPU VBIOS and noticed something odd, one of them was at and the other was at (I get these drivers here). I know for a fact that since some older NVIDIA Driver, the VBIOS must be or else I got some errors on this SAGER model, so I flash 33 on both a while back. I then proceeded to flash the correct version again. When I run DDU I notice it only detects the VBIOS version for one of the GPUs, the other one doesn't show the VBIOS version. My results are:
NV Driver 398.36
ROM 33
PCI BUS 2 working
PCI BUS 1 error code 43
ROM 67
PCI BUS 2 working
PCI BUS 1 error code 43
NV Driver 391.35
ROM 33
PCI BUS 2 working
PCI BUS 1 error code 43
ROM 67
PCI BUS 2 working
PCI BUS 1 error code 43
Can a Nvidia update or Windows update brick a GPU? How can I know if it's a software or hardware issue? I'm afraid that one GPU died as I don't have the money to replace it now and it would be difficult to find a spare new 680M (which is now old hardware) where I live. I'm panicking a little...
Edited by JChristian

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      59C4E94E    53              push    ebx
      59C4E94F    57              push    edi
      59C4E950    FFD0            call    eax
      59C4E952    8B8F 00010000   mov     ecx, dword ptr ds:[edi+100]
      59C4E958    8BD8            mov     ebx, eax
      59C4E95A    8D45 DC         lea     eax, dword ptr ss:[ebp-24]
      59C4E95D    50              push    eax
      59C4E95E    57              push    edi
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      59C4E961    8B56 10         mov     edx, dword ptr ds:[esi+10]
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      59C4E9AC    83F8 15         cmp     eax, 15
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      59C4E9B6    83F8 13         cmp     eax, 13
      59C4E9B9    75 43           jnz     short 59C4E9FE                   ; igdumdim.59C4E9FE
      59C4E9BB    F742 04 0000000>test    dword ptr ds:[edx+4], 2000000
      59C4E9C2    75 A3           je     short 59C4E9FE                   ; igdumdim.59C4E9FE
      59C4E9C4    C746 18 AC05655>mov     dword ptr ds:[esi+18], 5E6505AC
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      59C4E9CD    8B42 04         mov     eax, dword ptr ds:[edx+4]
      59C4E9D0    A9 00004000     test    eax, 400000
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      59C4E9D7    C746 18 3C05655>mov     dword ptr ds:[esi+18], 5E65053C
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      59C4E9E0    A9 00008000     test    eax, 800000
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      59C4E9E7    C746 18 0405655>mov     dword ptr ds:[esi+18], 5E650504
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      59C4EA09    8B46 18         mov     eax, dword ptr ds:[esi+18]
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      59C4EA16    C746 20 4000000>mov     dword ptr ds:[esi+20], 40
      59C4EA1D    C746 24 4000000>mov     dword ptr ds:[esi+24], 40
      59C4EA24    C746 28 4000000>mov     dword ptr ds:[esi+28], 40
      59C4EA2B    C746 2C 0400000>mov     dword ptr ds:[esi+2C], 4
      59C4EA32    C746 30 1000000>mov     dword ptr ds:[esi+30], 10
      59C4EA39    C746 34 1000000>mov     dword ptr ds:[esi+34], 10
      59C4EA40    C746 38 0008000>mov     dword ptr ds:[esi+38], 800
      59C4EA47    C746 3C 8000000>mov     dword ptr ds:[esi+3C], 80
      59C4EA4E    C746 40 2000000>mov     dword ptr ds:[esi+40], 20
      59C4EA55    C746 44 0008000>mov     dword ptr ds:[esi+44], 800
      59C4EA5C    C746 48 2004000>mov     dword ptr ds:[esi+48], 420
      59C4EA63    C746 4C 4004000>mov     dword ptr ds:[esi+4C], 440
      59C4EA6A    C746 50 2000000>mov     dword ptr ds:[esi+50], 20
      59C4EA71    C746 54 1000000>mov     dword ptr ds:[esi+54], 10
      59C4EA78    56              push    esi
      59C4EA79    C786 B8000000 3>mov     dword ptr ds:[esi+B8], 59C4D630
      59C4EA83    C786 BC000000 1>mov     dword ptr ds:[esi+BC], 59C4E410
      59C4EA8D    C786 C0000000 3>mov     dword ptr ds:[esi+C0], 59C4D830
      59C4EA97    C786 C4000000 4>mov     dword ptr ds:[esi+C4], 59C4E440
      59C4EAA1    C786 C8000000 A>mov     dword ptr ds:[esi+C8], 59D71FA0
      59C4EAAB    C786 CC000000 1>mov     dword ptr ds:[esi+CC], 59C4DB10
      59C4EAB5    C786 D4000000 8>mov     dword ptr ds:[esi+D4], 59C4E680
      59C4EABF    C786 D8000000 1>mov     dword ptr ds:[esi+D8], 59C4DC10
      59C4EAC9    C786 DC000000 8>mov     dword ptr ds:[esi+DC], 59C4E680
      59C4EAD3    C786 E0000000 8>mov     dword ptr ds:[esi+E0], 59C4E880
      59C4EADD    C786 E4000000 2>mov     dword ptr ds:[esi+E4], 59C4DD20
      59C4EAE7    C786 EC000000 6>mov     dword ptr ds:[esi+EC], 59C4CE60
      59C4EAF1    C786 F0000000 D>mov     dword ptr ds:[esi+F0], 59C4CED0
      59C4EAFB    C786 F4000000 8>mov     dword ptr ds:[esi+F4], 59C4CC80
      59C4EB05    C786 F8000000 F>mov     dword ptr ds:[esi+F8], 59C4E8F0
      59C4EB0F    E8 7CF8FFFF     call    59C4E390                         ; igdumdim.59C4E390
      59C4EB14    8B4D FC         mov     ecx, dword ptr ss:[ebp-4]
      59C4EB17    5B              pop     ebx
      59C4EB18    5F              pop     edi
      59C4EB19    33CD            xor     ecx, ebp
      59C4EB1B    5E              pop     esi
      59C4EB1C    E8 7354EEFF     call    59B33F94                         ; igdumdim.59B33F94
      59C4EB21    8BE5            mov     esp, ebp
      59C4EB23    5D              pop     ebp
      59C4EB24    C2 0400         retn    4
          This function is setting some thing according a flag which read from call on @59C4E95F, and the following part is a complex branch to select correct arguments for the function call @59C4EB0F. I tried some trace route and found we need let  branch @59C4E9C2 goes false, so here we make it to nop like this:
      59C4E9B1    83F8 16         cmp     eax, 16
      59C4E9B4    74 17           je      short 59C4E9CD                   ; igdumdim.59C4E9CD
      59C4E9B6    83F8 13         cmp     eax, 13
      59C4E9B9    75 43           jnz     short 59C4E9FE                   ; igdumdim.59C4E9FE
      59C4E9BB    F742 04 0000000>test    dword ptr ds:[edx+4], 2000000
      59C4E9C2    90              nop
      59C4E9C3    90              nop
      59C4E9C4    C746 18 AC05655>mov     dword ptr ds:[esi+18], 5E6505AC
      59C4E9CB    EB 31           jmp     short 59C4E9FE                   ; igdumdim.59C4E9FE
      59C4E9CD    8B42 04         mov     eax, dword ptr ds:[edx+4]
      59C4E9D0    A9 00004000     test    eax, 400000
      59C4E9D5    74 09           je      short 59C4E9E0                   ; igdumdim.59C4E9E0
          OK, the most important part comes, translate the RVA into file address, and modify it. Sounds really hard isn't it? Good news is there is a more easy way, and this is the signature about this fix:
          83 F8 13 75 43 F7 42 04 00 00 00 02
          Search this hex string in the file, modify the following two bytes into "90 90"
      00291280h: 74 09 C7 46 18 5C 35 C6 14 EB 73 F7 C1 00 00 00 ; t.荈.\5?雜髁...
      00291290h: 20 74 09 C7 46 18 94 35 C6 14 EB 62 85 C9 79 09 ;  t.荈.??隻吷y.
      002912a0h: C7 46 18 CC 35 C6 14 EB 55 8B 45 DC 83 F8 15 74 ; 荈.??險婨軆?t
      002912b0h: 1C 83 F8 16 74 17 83 F8 13 75 43 F7 42 04 00 00 ; .凐.t.凐.uC鰾...
      002912c0h: 00 02 90 90 C7 46 18 AC 36 C6 14 EB 31 8B 42 04 ; ..悙荈.???婤.
      002912d0h: A9 00 00 40 00 74 09 C7 46 18 3C 36 C6 14 EB 1E ; ?.@.t.荈.<6??
      002912e0h: A9 00 00 80 00 74 09 C7 46 18 04 36 C6 14 EB 0E ; ?.€.t.荈..6??
           We need the do same thing for file igdumdim64.dll, but because this is 64bit dll, so the signature is different:
         01 76 17 83 F9 13 75 44 F7 42 04 00 00 00 02
          The modify should like this
      002d56f0h: 73 09 48 8D 05 1F AD A7 04 EB 6D 0F BA E1 1D 73 ; s.H?..雖.横.s
      002d5700h: 09 48 8D 05 48 AD A7 04 EB 5E 85 C9 79 09 48 8D ; .H?H.隵吷y.H?
      002d5710h: 05 73 AD A7 04 EB 51 8B 4C 24 20 8D 41 EB 83 F8 ; .s.隥婰$ 岮雰?
      002d5720h: 01 76 17 83 F9 13 75 44 F7 42 04 00 00 00 02 90 ; .v.凒.uD鰾.....?
      002d5730h: 90 48 8D 05 30 AE A7 04 EB 2E 8B 42 04 0F BA E0 ; 怘?0.?婤..亨
      002d5740h: 16 73 09 48 8D 05 AE AD A7 04 EB 1C 0F BA E0 17 ; .s.H???.亨.
      002d5750h: 73 09 48 8D 05 67 AD A7 04 EB 0D 0F BA E0 18 73 ; s.H?g.?.亨.s
           OK after modify the two file, replace it into the windows directory, if your windows is 64 bit, put igdumdim64.dll into windows\system32, and  igdumdim32.dll into windows\sysWow64. This must be done under the safe mode, restart windows and press F8 before windows startup, goes into safe mode to replace it.
          After reboot, you will get all things work.
         PS: In my system the nvidia's video card cause some problem, it will let system hang sometime, I highly recommand to reinstall the nvidia's drivers after install the Intel's drivers. and choose a lower version, but not the newest version. I have UHD 620 and MX 150 in my system, and after I reinstall the 397.64 nvidia drivers the problem gone away and the laptop works like a charm.
    • By Psycha
      Hello, I'm on an alienware m17 r4 and am trying mod my vbios for a 970m 3GB msi. I've managed to get the max boost with an increase in voltage, however I believe my voltage settings maybe unstable. When attempting to load programs capable of high gpu usage capabilities, the gpu begins to become pretty unstable. would anyone be able to provide assistance? I have both my edited and original roms as well.
      I'm not sure how to delete this thread but disregard this please. I've figured out the issue.
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      I want to create an afermarket diy cooling solution for my laptop.

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