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No "VGA" input signal on my new Pc

  • 15-12-2012 6:34pm
    #1
    cggreene
    Registered Users Posts: 18 ✭


    Everything seems to be working, the fans on the GPU are running as is the one on the CPU. But when I turn it on , the monitor just stays black and goes to sleep.

    The cable is fine as it worked with a different PC, help please!

    xmf-radeon 7950
    Tagged:


Comments

  • #2
    yoyo
    Moderators, Technology & Internet Moderators Posts: 11,017 Mod ✭✭✭✭yoyo


    cilliangreene wrote: »
    Everything seems to be working, the fans on the GPU are running as is the one on the CPU. But when I turn it on , the monitor just stays black and goes to sleep.

    The cable is fine as it worked with a different PC, help please!

    xmf-radeon 7950

    Try reseating the RAM, Also your video card may require additional power via a 6 pin PCIe power port. So check the card is getting adequate power

    Nick

    My Beer Glass collection site 🍺

    My Irish Callcards site



  • #3
    cggreene
    Registered Users Posts: 18 ✭cggreene


    I did have the ram in the wrong positions , but I corrected that, it still does not work, GPU has all power cords on, and all fans are working.

    RGB cable is being used, but no input signal


  • #4
    yoyo
    Moderators, Technology & Internet Moderators Posts: 11,017 Mod ✭✭✭✭yoyo


    cilliangreene wrote: »
    I did have the ram in the wrong positions , but I corrected that, it still does not work, GPU has all power cords on, and all fans are working.

    RGB cable is being used, but no input signal

    What is the power supply in it? What do you mean RAM in wrong positions? I.e not in dual channel configuration or? Also try booting with just one stick of RAM, no change try the other one. Bad RAM can cause such an issue

    Nick

    My Beer Glass collection site 🍺

    My Irish Callcards site



  • #5
    Skerries
    Registered Users, Registered Users 2 Posts: 12,551 ✭✭✭✭Skerries


    probably a stupid question but is the video cable going into the gpu and not an onboard connector
    Untitled Image




  • #6
    cggreene
    Registered Users Posts: 18 ✭cggreene


    Yes, I tried it in both the GPU and the motherboard, none seem to work.


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  • #7
    uch
    Registered Users, Registered Users 2 Posts: 7,012 ✭✭✭uch


    This worked for me recently,..
    Remove the Video card, connect monitor to on-board VGA, boot and enter BIOS, in video settings set default Video to onboard (or similar) save changes and power off, put xmf-radeon 7950 back in PC and reboot, then check Device manager to see if you have any driver or hardware issues.

    21/25



  • #8
    CreepingDeath
    Closed Accounts Posts: 8,015 ✭✭✭CreepingDeath


    cilliangreene wrote: »
    Yes, I tried it in both the GPU and the motherboard, none seem to work.

    Do you even see the BIOS messages during booting ?
    Eg. "Press F5 to enter setup" ?

    How many graphics ports do you have at the back of your computer?
    Eg. there may be an on-board graphics chip on the motherboard, plus the graphics card you installed. So it may be defaulting in the BIOS to the on-board card, until you go into the BIOS and disable it.

    Also, depending on how clever your screen is, it might have a VGA and HDMI input, but doesn't automatically switch between them.
    So see if there's a "source" button to swap between them on your screen.


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