Dell Optiplex 990 with Windows 10 - not detecting PCI new GPU

  1. Posts : 3
    10 pro ver 1511 10586.545
       17 Aug 2016 #1

    Dell Optiplex 990 with Windows 10 - not detecting PCI new GPU


    Searched many sites, tried many suggestions. Issue is GPU on PCI slot not detected for Dell OptiPlex 990 using Win10 Pro. The GPU is EVGA GTX960. Installed PSU as well at 550 Watts. The BIOS does not let you to disable the integrated video card. I have done the following.. updated BIOS, reinserted GPU, uninstalled driver and disabled and disconnected cable to integrated video, and tried to use CMD bcdedit/set pciexpress forcedisable.

    When booting up new GPU van turns on but then turns off.

    Best Regards,

      My ComputerSystem Spec

  2.    18 Aug 2016 #2

    I found this on the Dell site.
    Product not tested for Windows 10 upgrade
    Dell is not testing or developing Windows 10 drivers for this product. If you choose to upgrade, some features, applications, and connected devices may not work as expected.
    These are "business" workstations and as such do not have the flexibility that general PC's have.
    You can try the Dell Community desktop forum, but with the limited BIOS options the separate video card may never work.
    Desktop - Dell Community
      My ComputersSystem Spec

  3. Posts : 3
    10 pro ver 1511 10586.545
    Thread Starter
       18 Aug 2016 #3

    Thank You for reply. Should I back the OS to Windows 8 or 7? If so how and what do I need.

    Best Regards, Word
      My ComputerSystem Spec

  4.    18 Aug 2016 #4

    The video card problem is not OS related, so whatever OS you have, you will have the same problem.
    I just posted the Dell Notice as "FYI".

    Post your video card question on the Dell forum I linked in my other post. See if someone there has a workaround.
      My ComputersSystem Spec

  5.    18 Aug 2016 #5

    I just looked at the BIOS updates for this model. BIOS Update A03 includes "Enhanced Multi-Display for a special graphics card".
    I don't know if that means this BIOS update adds support for a separate video card. Something to consider and maybe ask on the Dell Forum

    Dell Optiplex 990 System BIOS Driver Details | Dell US
      My ComputersSystem Spec

  6. Posts : 3
    10 pro ver 1511 10586.545
    Thread Starter
       18 Aug 2016 #6

    Thank you, I tried to post on Dell, but it is not as easy as this forum, Tenforums. I will need to do that. Several Youtubes demonstrate it is possible. To verify if it is my motherboard, I purchased a PNY Geforce GT 610 using PCI-E 2.0 and it works. But is only uses the MS driver, even after loading CD with it. But at least I know the PCI-E slot works.

    The mother board is Product 06D7TR ver A000, SMBIOS version A18 (9/24/2013). seems pretty old the version.
    Best Regards,
      My ComputerSystem Spec

  7.    24 Aug 2016 #7

    Im planning on upgrading my Optiplex 990 also I'm just wondering if you got the GPU working... I hope that I can upgrade it.
    Last edited by LILCORE4; 24 Aug 2016 at 21:04. Reason: Miss spell
      My ComputerSystem Spec

  8.    24 Aug 2016 #8

    BTW the recent mobo. Version is A19
    Also go to system configuration in the BIOS after upgrading and theirs a an option called Miscellaneous Device and it says Enable PCI Slot, should be checked
    Last edited by LILCORE4; 24 Aug 2016 at 21:43.
      My ComputerSystem Spec


Related Threads
I am currently in the hunt for a good graphic card and its near impossible for me to find! Help me out please. I have a Dell OptiPlex 755 DT version (slim) Specs: 4gb ram 2.33 ghz windows 10 and will this one work ->MSI N610-2GD3H / LP -...
I have a new Lenovo AIO that came with Windows 10. From the start, it successfully detected a second monitor connected by HDMI. Yesterday I disconnected the second monitor in order to move to a new location. Now Windows is not detecting the...
I'm trying to successfully deploy Windows 10 on a Dell OptiPlex 790 in my lab environment in order to push Windows 10 out to several of these PCs currently in production. Despite the fact that Dell does not offer a driver pack for Windows 10 for the...
Optiplex 390s BSOD windows 10 upgrade. in BSOD Crashes and Debugging
I have 2 identical Optiplex 390's running Windows 7 pro that fail in exactly the same spot during Windows 10 upgrade. They BSOD at 75% during migrate data with an error code of OxC1900101-Ox4000D. The BSOD error message is "system thread exception...
Since I upgrade to Windows 10 (coming from 8.1) in my friend's Dell Optiplex 3011 All-In-One computer, with built-in speakers, the audio has been disabled, and I see the Windows speaker icon is with an "x". In Windows 8.1, the audio was working...
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 18:00.
Find Us