M6800 Owners' Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by billxt95, Nov 1, 2013.

  1. dougyj01

    dougyj01 Newbie

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    Proud owner of a m6800 Covet edition from ebay its stripped of components but good for me i can put some decent stuff in it, maybe a gtx 965 and a 4800mq, super excited to finally grab a covet for not 2000 dollars.
     
  2. l3n0x

    l3n0x Newbie

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    Hi Chaps!

    I'm about to pull a trigger on a secondhand m6800, i7-4810QM & K4100M, FHD display. My only concern is that when I look closely (~30cm) at the screen I can see very faint, hard to spot, but lots of vertical lines (almost like seeing the columns of the pixel raster), especially on grey or white background - which seems unusual to me, and haven't seen anything like this before & albeit I'm used to lower end, entry level laptops / screens.

    I imagine I could live with it as is, because my eyes would get used to it after a while, but is this how these screens are? Or is there a deffect possibly in this particular one?

    Thanks in advance!
     
  3. Aaron44126

    Aaron44126 Notebook Virtuoso

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    "Screen door effect" where you can see the "lines" between the vertical or horizontal rows of pixels (or both)? Not uncommon, but its "intensity" varies depending on the screen model. You can swap out the panel if it bothers you... In most screens it should be hard to notice unless you are looking very close.
     
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  4. l3n0x

    l3n0x Newbie

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    Thank you for your response!

    I have a 24" HP old, low-end FHD LCD screen right in front of me, and can't see anything like this. This is why it was strange to me. Seller swapped out the screen today for another one, but he says it's still the same. He says it's because of the pixel density (or lack of), which would be acceptable, if the 24" HP was doing it, but it isn't... I think I should try and check another M6800, and see how that is..
     
  5. supermoth

    supermoth Notebook Enthusiast

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    Thanks for your help.I had some time and tryed again.
    I was able to boot into windows.
    i am able to see the Tesla installed and through HWinfo,although I am unable to install an nvidia driver at all.
    On windows 8.1 shows up as a Microsoft Basic Display Adapter.
    Is there any way to install an nvidia driver ?
    Thanks
     
  6. Aaron44126

    Aaron44126 Notebook Virtuoso

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    When swapping out the GPU in these systems with an unsupported GPU, you will have to modify the NVIDIA driver INF file in order to get the driver to load. I'll give you the basic procedure but you can Google for more specifics.

    First, modifying driver files will break the driver digital signature. You need to allow loading unsigned drivers for the install. (You don't have to do this at every boot, just when you are installing or upgrading the driver.) Hold "Shift" while you reboot your system from the Start Menu, and select "Advanced startup options" for the menu that appears, and then "7" (I think?) to disable driver signature checking.

    Extract the NVIDIA drivers (I think this happens when you run the .exe file, pay attention to where it is dumping them, I always extract manually with WinRAR). Go to the "Display.Driver" folder in where they were extracted to. Since your Tesla M6 card is like a Quadro M5000M, we can start with trying to make it behave like the Quadro M5000M in Dell systems. In drivers downloaded from NVIDIA's site, this is defined in the file nvdmwi.inf.

    Go to Device Manager and find the Hardware ID for your "basic" driverless GPU. It's on the "Details" tab, select "Hardware Ids" from the drop-down. You should find something that looks like this with different numbers.
    PCI\VEN_10DE&DEV_13F8&SUBSYS_053F1028

    In nvdmwi.inf, find the line: NVIDIA_DEV.13F8.06DA.1028 = "NVIDIA Quadro M5000M"
    Copy it to a new line, and change the ID numbers to match your hardware ID. In my case I change it to look like: NVIDIA_DEV.13F8.053F.1028 = "NVIDIA Quadro M5000M"
    (You can change the card name in quotes to "NVIDIA Tesla M6" if you like, this has no actual function except for what the card's name will be in Device Manager.)

    Now, go back to the top of the file, and search for one of these strings (without quotes).
    "%NVIDIA_DEV.13F8.06DA.1028%" <-- If you have graphics switching turned ON
    "%NVIDIA_DEV.13F8.16DA.1028%" <-- If you have graphics switching turned OFF

    Each time you find a line with this inside, copy it, and change the hardware ID to match yours. Note that you need to change the ID at two places in each line, at the beginning and at the end. So in my case, I change this
    %NVIDIA_DEV.13F8.16DA.1028% = Section246, PCI\VEN_10DE&DEV_13F8&SUBSYS_16DA1028
    into this
    %NVIDIA_DEV.13F8.053F.1028% = Section246, PCI\VEN_10DE&DEV_13F8&SUBSYS_053F1028

    Note that you will need to continue to search the file for this string and fix each of them as there will be multiple occurrences.

    Now, save the file and you're done. Run the NVIDIA setup file (one level up in the directory structure from where the INF file is) and it should detect your card and install the driver. You will be prompted by Windows to allow the installation as the digital signature will be bad. After the driver is installed, you can reboot and it should hopefully work normally.


    You have to repeat this process if you ever want to install upgraded drivers. It's a pain, but such is life with an unsupported laptop GPU...
     
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  7. supermoth

    supermoth Notebook Enthusiast

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    Did it already!!!!!!!
    Thanks a lot for your help.Finally I can claim a sucesss with the upgrade.
    Thank you very much.The M6800 flies!!!!.
     
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  8. Aaron44126

    Aaron44126 Notebook Virtuoso

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    Awesome. So, Tesla can work in a laptop. Are you using graphics switching on or off (out of curiosity)?
     
  9. supermoth

    supermoth Notebook Enthusiast

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    Working on that right now
     
  10. supermoth

    supermoth Notebook Enthusiast

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    Temps at max load around 70c.Quite happy.
    No info yet if optimus works or not.
    Is there any tool that monitors both gpus?
    Thanks
     
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