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Graphics card stops working after windows logo

By MrCameroon
Mar 29, 2016
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  1. Computer has been slowing down recently and blue screening every so often so I decided it was time to reformat my HD, went ahead and did that and also reinstalled windows 8.1 with a hope of fixing it.

    Booted my computer, worked very well and fast, 20 minutes into the session the computer froze up and my display died, I could still hear audio just no visuals. I restarted my PC only to be met by missing pixels on my 'Gigabyte' screen and after that I just had a black screen with random colours literally 5 or 6 1 pixel thick lines. I went inside my computer and looked for lose connections but there were none.

    At this point I decided to reinstall windows again with a desperate hope of that fixing it, and it did! for 20 minutes and it crashed again and just restarted the process.

    Just FYI:
    -I didn't change any hardware or software before this started happening
    -Have tried to update drivers but can't do that in Safe mode and I cannot get onto normal mode
    -I can boot into normal mode with my Motherboards internal graphics BUT my graphics card has to be unplugged or it wont let me.

    SPECS:

    OS Version: Microsoft Windows 8.1, 64 bit
    Processor: AMD FX(tm)-6300 Six-Core Processor, AMD64 Family 21 Model 2 Stepping 0
    Processor Count: 6
    RAM: 16365 Mb
    Graphics Card: AMD Radeon HD 7800 Series, -2048 Mb
    Hard Drives: C: Total - 1907626 MB, Free - 1863028 MB;
    Motherboard: Gigabyte Technology Co., Ltd., GA-78LMT-USB3
    Antivirus: Windows Defender, Disabled
     
  2. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    Tinkerer's opinion - heat related failure in video card.

    If card is no longer in warranty, I would remove shielding, shroud, fan, heatsink - clean them all and reassemble with fresh paste
    If still IN WARRANTY, I would take canned air and blow out the fan and exchanger area while holding the fan.

    Then I would try the card in my system again.

    If still issues, I would confirm system is good by using a known good video card - and then I would replace the faulty video card.
     
    bazz2004 likes this.
  3. MrCameroon

    MrCameroon TS Rookie Topic Starter

    Surely if it was a heat related issue the card would work to the same extent every time. It slowly seems to degrade each time I turn it on until it just wont boot anymore.
     
  4. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    You did say that it ran 20 mins then died. If dead now it may have cooked.
     
  5. MrCameroon

    MrCameroon TS Rookie Topic Starter

    But if I reinstall windows, it will be fine for another 20. And I can continue to do that over and over again.
     
  6. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    Experiment and take careful notes... share the observations...use google and review articles and advice about issues.

    Since Windows 10 does not come with a deadman switch, my guess is heat related issue with video card.

    Download HWInfo and monitor temps (might watch voltages too) on sensor history page - report ranges.

    Google: "black screen with random color lines"
     
  7. MrCameroon

    MrCameroon TS Rookie Topic Starter

    Computer gets to the windows loading symbol, after, a black screen appears with a few coloured pixels for around 5 seconds then restarts.

    Reinstalled windows:

    1st boot - Computer boots up fine with GPU plugged in, text a little fuzzy (not sure if its windows 8.1 or my GPU). It runs fine, 20 mins in the computer freezes and restarts.

    2nd boot - The Computer does the same this time only running for 10 minutes

    3rd boot - Computer gets to the windows loading symbol, after a black, screen appears with a few coloured pixels for around 5 seconds then restarts.

    Unplugged the GPU and plugged the VGA into the Motherboard:

    1st boot - Computer boots fine and runs perfectly on internal graphics, text still fuzzy.

    Plugging my VGA cable into the Motherboard whilst GPU is still plugged in:

    1st boot - Computer refuses to recognise that there is something plugged into the VGA slot of the motherboard, nothing happens on the monitor.
     
  8. bazz2004

    bazz2004 TS Evangelist Posts: 1,232   +201

    It certainly sounds like the graphics card is nearly dead so I can't see any logic behind reinstalling Windows. I've had to replace more graphics cards in my computers than any other item. Unless you are a games fanatic it's a pretty cheap job.
     
  9. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    Since broken with video card and not broken with no video card - Occam says 'problem is video card'.
     
  10. MrCameroon

    MrCameroon TS Rookie Topic Starter

    Is it normal for the graphics card to work each time I reinstall windows though? Like it basically gives me 20 minutes of perfect browsing each time I reinstall.
     
  11. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    If out of warranty:
     
  12. Cycloid Torus

    Cycloid Torus TS Evangelist Posts: 1,657   +309

    IMHO, yes. Install uses a static screen - little activity for video card. The install may 'rest' the video card - make it cooler. If video card fan is dead OR full of dust OR a heatsink mount is broken, it would run a bit and then crash. Try another fan blowing on video card, see if it takes longer to crash.
     
  13. bazz2004

    bazz2004 TS Evangelist Posts: 1,232   +201

    Well if you are happy continue to reinstall Windows daily for 20 mins computer time. Myself, I'm not a fan of reinstalling Windows and it would be about my last choice.
     

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