Windows 10: Added graphics card for 2nd monitor, now computer not reading 1st one

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  1.    05 Mar 2016 #1

    Added graphics card for 2nd monitor, now computer not reading 1st one

    Help - I'm not real computer savvy with all the terms so go easy on me. I want to add a 2nd monitor and was told I needed a 2nd graphics card. I purchased a PNY Verto GeForce GT 730 graphics card (Best Buy guy's advice). I got the card in with no problems, plugged the 2nd monitor cord into the new VGA port and turned it on. The 2nd monitor came on but the original monitor was black. I ran the software for the new device, but still nothing. I then switched the cords around so my original monitor is plugged into the new VGA port. Now the original monitor is working but the 2nd one is black. I assume this means my computer isn't recognizing the ORIGINAL graphics card???

    I looked in Device Manager to see if there was an exclamation point, but all it shows is the new one: NVIDIA GeForce.

    I have a Lenovo desktop. 64 bit. I can't wait until Monday to call PNY and need to fix this ASAP. Any help is appreciated!
      My ComputerSystem Spec

  2.    05 Mar 2016 #2

    Some computers disable the original-built-in card when you add a second aftermarket one.
    There should be another place to add another monitor on the new card. It should be able to handle both.

    Edit: Your power supply can handle the new card right?
      My ComputerSystem Spec

  3.    05 Mar 2016 #3

    cradom, thank you. So I have to use this new card's ports for all the monitors now? I thought it would work in conjunction with the original. On the new card is one port for VGA and HDMI and another longer port that I don't know the name of. Do I need a VGA to HDMI adapter? When IT set up my computer at work for a 2nd monitor, I see that they used an adapter. Originally I thought this was all I needed, but when I asked for this at Best Buy, the guy said the adapter alone wouldn't work and I needed to buy a 2nd graphics card. If this is true, I don't understand the need for the 2nd graphics card if everything's still going into one card.

    As for the power supply, I have no idea. How can I find this out? It's a fairly new computer that I just bought a few years ago. My computer at work is much older and IT added a second monitor to that one.
      My ComputerSystem Spec

  4. jds63's Avatar
    Posts : 3,105
    Windows 10 Pro 64 bit
       05 Mar 2016 #4

    What was your first graphics card, integrated ? Not sure i am understanding.
      My ComputerSystem Spec

  5.    05 Mar 2016 #5

    Yeah, we need more info. Is the original GPU built into the motherboard, or is it a stand alone dedicated video card? If the original GPU is built into the motherboard, then yes, in most cases you need a dedicated video card to run more than one monitor. Onboard video, in most cases is pretty basic. And as mentioned, onboard is most often disabled when a dedicated card is detected by the BIOS. Newer, high end, motherboards can run hybrid setups and use both, but older boards can't. You'll likely have to connect both monitors to the card you added to get dual displays.
      My ComputerSystem Spec

  6. jds63's Avatar
    Posts : 3,105
    Windows 10 Pro 64 bit
       05 Mar 2016 #6

    This card has 1 HDMI, 1 VGA and a DVI . What does each monitor have ? Usually use one monitor on DVI and other on HDMI go to display properties make sure to detect and identify the other monitor .
    Truthfully i would stay away from PNY, plus this is a low end card.
      My ComputerSystem Spec

  7.    05 Mar 2016 #7

    I got it working. I just needed to purchase a VGA-HDMI adapter to plug both cords into the new card. (Both monitors have only VGA ports.) My confusion was in thinking I could keep the original monitor cord in the original VGA port. Glad to know I did indeed need the new graphics card.

    Thanks for the info, everyone. Much appreciated!

    As for it being low-end, hopefully it's okay for what I'm using it for, which is just to have multiple windows and spreadsheets open while I'm working. I'm not using it for games or anything.
      My ComputerSystem Spec

  8.    05 Mar 2016 #8

    If the original built-in GPU had a VGA and HDMI output, then your HDMI-VGA adapter could have been used on the built-in HDMI port as well.
      My ComputerSystem Spec

  9.    05 Mar 2016 #9

    Oh man, really? Yes, there was a VGA and HDMI port before. Bummer to think I spent $60 when I didn't need to.
      My ComputerSystem Spec

  10.    06 Mar 2016 #10

    Pinecone said: View Post
    Oh man, really? Yes, there was a VGA and HDMI port before. Bummer to think I spent $60 when I didn't need to.
    Maybe, maybe not. Depends on the motherboard. Some will have the two connectors, for convenience, but will only ever output one signal. If you connect two monitors they both get the same signal. Duplicate. There will be no Extend option either. Even if it would have worked, you'll likely get better performance from the dedicated card that has its own dedicated Video RAM. You onboard robs from your PC's RAM. It's not a total lose, you will get some benefit from that $60.
      My ComputerSystem Spec

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