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Glitchy Coloured Lines Across Boot Up Screens


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#1 poonani

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Posted 31 December 2014 - 09:43 PM

CPU: Intel Core i7-3770K CPU @ 3.50GHz
Graphics Card: NVIDIA GeForce GTX 670

Motherboard: ASRock Z77 Extreme4
Monitor: Acer S220HQL

When I started up my PC this morning I found that the boot up screens had these glitchy green and purple vertical lines across them.

So I tried plugging my monitor into the onboard Intel to see whether my GTX 670 was the issue. After this this I found that upon restarting that the monitor was working, but the boot up screens were skipped entirely, going straight to the Windows opening.

 

Then I decided to remove the DVI cable and plug the monitor into the Intel via a VGA cable. I booted up and found that the monitor wouldn't turn on. I then tried plugging the DVI cable back into the Intel and found that it, again, displayed 'no signal'.

 

I plugged the DVI cable back into the GTX 670, restarted the PC and found that the PC froze on a boot up screen, now with these thin green and red lines all across it.

Finally, I restarted the PC by the switch and found that now the monitor turns on, but displays no image--only a black screen.

 

So, does anyone have an idea as to which piece of hardware the fault might be with?



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#2 hamluis

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Posted 02 January 2015 - 04:10 PM

Try a different monitor...that should define the problem.

 

Louis



#3 poonani

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Posted 02 January 2015 - 05:41 PM

I tried one. Same problems, unfortunately. I'm thinking it may be something like the motherboard now. 






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