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PC crashed - started showing multicoloured lines and wouldn't start up


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#1 Fairweva

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Posted 21 December 2015 - 10:55 AM

Hey guys - I had this crazy, seemingly random, crash last night and I was wondering if anybody could help me figure out where the problem lies. 

 

I was in the middle of a LoL game last night - I had OBS and Windows Media Player running in the background, same as always. When suddenly, my PC crashed out of the blue. It showed some weird, purple-ish squares, and froze. The audio started looping and there was seemingly nothing I could do to break it out of this freeze, so I turned off the PC and tried to restart it.

 

When I restarted it, the resolution had changed to 800x600, from the usual 1920x1080, and there were a bunch of horizontal lines all over the screen (digital artifacts?) (the lines were short and multicoloured, though mostly yellow, and were spread randomly around the screen). From then on, whenever I tried to start the PC, it would show a different loading screen than usual, that looked like this. Attached File  image0.png   2.38KB   0 downloads As opposed to the usual Windows 7 loading screen - then it would just go to a black screen and remain there until I turned it off again. 

 

The only changes I had made to my PC on that day were downloading teamspeak (from their official website) and downloading a new desktop background.

 

Eventually, about 16 hours after it first crashed, and maybe 6 hours after my last attempt, I was able to load up the PC into safe mode. I ran a virus scan and nothing was found. I then restarted the PC, and it loaded up as normal (although it ran somewhat slower than usual for the first few minutes). I guess my PC must have done some sort of system restore, as my desktop background has changed back and teamspeak is nowhere to be found.

 

It seems to be running normally now, but I'm paranoid that it might happen again at some random time (I play a lot of League, and having it crash during ranked games as it did yesterday would be very problematic).

 

PC specs:

 

OS: Windows 7 Home Premium Edition, 64-bit Service Pack 1 (build 7601)

 

RAM: 8GB

 

GPU: NVIDIA GeForce GTX 560

 

PSU: evo labs E-750XB 

 

CPU: Intel Core i7   960 @ 3.20GHz 3.19 GHz (whatever that means)

 

Motherboard: GIGABYTE G1.Guerrilla  



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#2 Drillingmachine

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Posted 21 December 2015 - 01:04 PM

That picture usually shows during installation, on very slow computers or Windows repair etc like you suspected. Possible causes hardware failure (hard disk?) or just Windows bug. When Windows was last time installed? If many years ago, consider reinstalling it.



#3 Fairweva

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Posted 21 December 2015 - 01:19 PM

That picture usually shows during installation, on very slow computers or Windows repair etc like you suspected. Possible causes hardware failure (hard disk?) or just Windows bug. When Windows was last time installed? If many years ago, consider reinstalling it.

Last installed Windows a few years back. Could that cause the digital artifacts and the crash though? I'll definitely look into reinstalling it anyway, just to be safe.

 

As for hardware issues, is there an easy way of determining which bit of hardware has failed? I don't have any spare GPUs/hardisks etc, so I couldn't switch them out without buying new stuff.



#4 Drillingmachine

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Posted 21 December 2015 - 01:36 PM

 

That picture usually shows during installation, on very slow computers or Windows repair etc like you suspected. Possible causes hardware failure (hard disk?) or just Windows bug. When Windows was last time installed? If many years ago, consider reinstalling it.

Last installed Windows a few years back. Could that cause the digital artifacts and the crash though? I'll definitely look into reinstalling it anyway, just to be safe.

 

As for hardware issues, is there an easy way of determining which bit of hardware has failed? I don't have any spare GPUs/hardisks etc, so I couldn't switch them out without buying new stuff.

 

 

Few years is quite lot. So I recommend reinstall. Remember to back up all important files.

 

Because computer is now working, it would be very hard to tell what part failed some time ago. Generally only way to determine faulty part is to switch all parts one by one. Without spare parts, hope that reinstall solves problem.



#5 Fairweva

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Posted 21 December 2015 - 01:50 PM

 

 

That picture usually shows during installation, on very slow computers or Windows repair etc like you suspected. Possible causes hardware failure (hard disk?) or just Windows bug. When Windows was last time installed? If many years ago, consider reinstalling it.

Last installed Windows a few years back. Could that cause the digital artifacts and the crash though? I'll definitely look into reinstalling it anyway, just to be safe.

 

As for hardware issues, is there an easy way of determining which bit of hardware has failed? I don't have any spare GPUs/hardisks etc, so I couldn't switch them out without buying new stuff.

 

 

Few years is quite lot. So I recommend reinstall. Remember to back up all important files.

 

Because computer is now working, it would be very hard to tell what part failed some time ago. Generally only way to determine faulty part is to switch all parts one by one. Without spare parts, hope that reinstall solves problem.

 

I'll give reinstalling a shot then. Thank you for the advice.

 

If that doesn't work, I'll call a local PC repair place and see if there's anything they can do.



#6 hamluis

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Posted 22 December 2015 - 01:21 PM

Please download MiniToolBox  , save it to your desktop and run it.
 
Checkmark the following checkboxes:
  List last 10 Event Viewer log
  List Installed Programs
  List Users, Partitions and Memory size.
 
Click Go and paste the content into your next post.
 
Also...please Publish a Snapshot using Speccy - http://www.bleepingcomputer.com/forums/topic323892.html/page__p__1797792#entry1797792 , taking care to post the link of the snapshot in your next post.
 
Louis






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