M6800 Owners' Thread

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

  1. MDM3D

    MDM3D Notebook Enthusiast

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    If the card is already a dell card will i need to reflash the vbios?
     
  2. Aaron44126

    Aaron44126 Notebook Virtuoso

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    No.
     
  3. DynamiteZerg

    DynamiteZerg Notebook Consultant

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    The fastest card you can go is technically the P5000 mobile with Optimus enabled (LVDS) or for eDP can run with or without Optimus. I will trying my P5000 setup later this weekend on my M6800. See the post below:

    http://forum.notebookreview.com/threads/graphics-card-upgrade-for-m6800.806352/page-13#post-10721780

    For playing games the GTX980M is faster than the M5000M but the P5000 will beat the **** out of them all.
     
    Last edited: Jun 16, 2018
  4. Aaron44126

    Aaron44126 Notebook Virtuoso

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    P5000 only works with eDP, right? (I think that later M6800 had eDP but earlier ones had LVDS.) You may be able to get it to work with LVDS but it will require Optimus enabled.
     
  5. DynamiteZerg

    DynamiteZerg Notebook Consultant

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    That's what I thought as well (and my original post included the enabling the Optimus part) until I went to re-read the link I posted. It seems like @iieeann was able to run it with and without Optimus enabled. He had a screen capture to prove the part where Optimus was disabled. I'm just not sure whether his M6800 is eDP or LVDS.

    @iieeann is your M6800 eDP or LVDS?
     
  6. Aaron44126

    Aaron44126 Notebook Virtuoso

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  7. MDM3D

    MDM3D Notebook Enthusiast

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    Yes the P5000 would be nice but at 3X the price of the M5000m I picked up it is not that much faster! YMMV And I have an LVDS m6800 :(
     
  8. MDM3D

    MDM3D Notebook Enthusiast

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    Next question, I have always had AMD cards in my laptops M8900 and M6100 and the switchable graphics options never worked well at all for the m6100 and was not available for the M8900. Is optimus worth the effort to set up for the M5000m and does it actually work well without to much of a penalty?
     
  9. Aaron44126

    Aaron44126 Notebook Virtuoso

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    I've found that switchable graphics works well with NVIDIA GPUs, without very much of a performance penalty. When I did 3DMark testing early on with my M6700, I found that some scores were a little bit lower with Optimus on but some were actually a little bit higher. But, there can be odd behaviors with Optimus on depending on the application or game that you are using. A few things that I can think of are, games with diagonal tearing when running full screen on the NVIDIA GPU on the laptop display (DirectX 9 2D games), and games that refuse to render on the NVIDIA GPU without a good amount of config work (Valve Source engine games).

    This is even more true if you use a multi-display configuration with some screens attached to the NVIDIA GPU and some attached to the Intel GPU. (The laptop display is attached to the Intel GPU but the HDMI port is attached to the NVIDIA GPU, for example.) Things usually work fine but I've had cases of applications working on one screen but showing up black when moved to the other screen. (Visual Studio suffers from this regularly, and also running a multi-monitor Remote Desktop session leaves one monitor black.)

    Even with the issues, I always ran with Optimus on until recently to avoid the NVIDIA auto-contrast-on-battery issue. This has been finally fixed in the NVIDIA 390-series drivers so it is no longer a problem.

    I think that things have improved somewhat with later versions of Windows 10. I can't test much on my M6700 because Intel never upgraded the Ivy Bridge GPU drivers to fully support Windows 10 (they are still WDDM 1.3 drivers), but they have upgraded the drivers for the Haswell generation chips that the M6800 uses. Windows 10 1803 has options to configure which app runs on which GPU built in to the "Settings" control panel thing, so you don't have to go to the GPU driver provided control panel to manage this anymore.

    I say, if you're going to be running on AC power most of the time, just run with Optimus turned off; it's a simpler configuration. But, feel free to try it and see how it works for you, I think that you'll find that it works better than AMD's solution anyway.

    If you turn switchable graphics on but later decide to turn it off, go to the "uninstall programs" control panel thing in Windows and remote the Intel graphics driver. (It leaves behind some startup items and services that you won't need if the Intel GPU is not in use.)
     
  10. MDM3D

    MDM3D Notebook Enthusiast

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    WOW other than moding my AMD heat sink with my mill to make the M5000m fit (and i did order the NV model cooler and it was way off for the M5000m). Life is awesome M6800 with M5000m rocks Thanks A million for this forum I would never had the guts to try this otherwise.

    edit copper is really soft and leaves a large bur use a dremel/rotary tool to clean the edge up and not a deburring tool.

    Heat sink mod.png
     
    Last edited: Jun 20, 2018
    Aaron44126 likes this.
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