Graphics card stops working after windows logo

[MrCameroon]

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

 

[Cycloid Torus]

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.

 

[MrCameroon]

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.

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.

 

[Cycloid Torus]

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

 

[MrCameroon]

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

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

 

[Cycloid Torus]

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"

 

[MrCameroon]

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.

 

[bazz2004]

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.

 

[Cycloid Torus]

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

 

[MrCameroon]

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.

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.

 

[Cycloid Torus]

If out of warranty:

 

[Cycloid Torus]

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.

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.

 

[bazz2004]

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.