Windows 8 and 8.1 Forums


VGA Connector works on motherboard, but not on GPU

  1. #1


    Posts : 2
    Windows 8.1

    VGA Connector works on motherboard, but not on GPU


    Hello everyone,
    So I had 2 questions, and Ill try and make this as short as possible for your convenience.
    I recently built my 1st gaming PC (Intel Core i7-3770, EVGA GeForce GTX 770, NZXT Phantom 240 - System Build - PCPartPicker Canada) , and had a couple problems with the display while the GPU (GeForce GTX 770) was plugged into the motherboard (MSI Z77A G41) which then I fixed... or so I thought... I got it to work through the motherboard, so now the display works on the monitors and I can start up the computer and install drivers for the GPU and see that the computer recognizes it in "Devices Manager" panel, but as soon as I plug the VGA connector into the GPU it shows no display once again... literally nothing, the light in the monitor just starts flashing after a while... I have tested 2 different monitors which gave me the same result, and I tried playing the the BIOS around but did not find anything that fixed the problem... so my question is does my GPU work even if it shows no display when I connect the VGA connector into the graphics card? If I was to install a game would I be able to run it at high settings or would it run in the integrated graphics card (Intel HD 4000)... and the other question is if it does not work, how do I fix this?
    I appreciate your help in advance, and will try and answer the questions about this problem as soon as possible... thanks!
    P.S. I made a post before about the problem that I had before this, which was that the graphics card did not show display at all when plugged into the mother board... (which I thought I fixed)
    http://www.tomshardware.com/answers/id-2236675/msi-z77a...

      My System SpecsSystem Spec

  2. #2


    Melbourne,FL.
    Posts : 187
    Windows 8.1 Pro w/Media Center x64


    You're trying to plug a VGA cable in ? Are you sure you're not trying to plug either a DVI, HDMI or Display Port cabeles. I have 2 Geforce GTX 760's in my pc and neither have VGG input on them. I really doubt the GTX 77's, 780's or Titan's do eitherTry a new DVI cable, preferably one that is dual-link and see what happenswhen you plug it into the lower DVI slot on your GTX 77 (it has 2). The top one is for DVI single-link cable's. Dual-Link one's look better.
      My System SpecsSystem Spec

  3. #3


    Sydney, Nova Scotia, Canada
    Posts : 6,490
    Windows 10 Education 64 Bit


    I'm also having problems following what your doing but I'll run a few things by you anyway. First off, unless you have hybrid crossfire or similar, once you install a dedicated video card, you have to move the monitors video cable to the connector on the video card. The one on the motherboard will stop sending out a signal. Also, if you are using a DVI to VGA adapter, the port you connect it too must be a DVI-I connector. DVI-I is analog and digital. If there are two DVI connectors on the video card one may only be a DVI-D, which is digital only. The DVI to VGA adapter will not work on a DVI-D connector, it has to be a DVI-I, integrated,
      My System SpecsSystem Spec

  4. #4


    Posts : 2
    Windows 8.1


    Quote Originally Posted by brkkab123 View Post
    You're trying to plug a VGA cable in ? Are you sure you're not trying to plug either a DVI, HDMI or Display Port cabeles. I have 2 Geforce GTX 760's in my pc and neither have VGG input on them. I really doubt the GTX 77's, 780's or Titan's do eitherTry a new DVI cable, preferably one that is dual-link and see what happenswhen you plug it into the lower DVI slot on your GTX 77 (it has 2). The top one is for DVI single-link cable's. Dual-Link one's look better.
    Yes, its the VGA cable with the adapter for the graphics card, I will try and see if it works with an HDVI... thanks for the help!
      My System SpecsSystem Spec

VGA Connector works on motherboard, but not on GPU
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