Problems with full screen games!

  1.    23 Oct 2016 #1

    Problems with full screen games!

    My son has a PC & whenever he plays full screen games. A noise comes from his tower like a high pitched static noise & flickering lines appear on the screen. As soon as he minimises the game, it stops.

    He has a Q9300 CPU, 4gig DDR3 & a HD6770 GPU.

    Any suggestions to what it might be or how I could find out?
      My ComputerSystem Spec

  2. Berton's Avatar
    Posts : 5,514
    Win10 Home and Pro, Win10 Insider Preview, WinXP Home Premium, Linux Mint
       23 Oct 2016 #2

    Is it Full Screen or Maximized? They are different. Sounds to me like the video adapter is being overworked or maybe it is loose in its slot, probably the PCIe X16. Could be the fan on the card is the issue?
      My ComputerSystem Spec

  3.    23 Oct 2016 #3

    I would also lean towards graphics card or PSU. You can try removing the graphics card and play on the built-in graphics card to test. If the noise goes away remove the graphics card.
      My ComputerSystem Spec

  4.    25 Oct 2016 #4

    It has on-board graphics. So I will load it up & test it & get back with the results. However I don't think it could be the PSU as its a new 600w barely 6 months old & it was originally used with a HD4870 which is far more power hungry than his current card.

    Will update when I've resolved it!
      My ComputerSystem Spec

  5.    28 Oct 2016 #5

    Update. It appears to be the graphics card. I removed it & no noise although slower using onboard graphics. I left the card in while testing. Just switched primary video adaptor & its definitely the GPU.

    Not a happy bunny as they are 2 graphics card HD 6770's sold as a pair on eBay as working & they both do the exact same thing. So will be opening a case with paypal.

    I believe these have been overclocked or allowed to overheat to cause such damage?
      My ComputerSystem Spec


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