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Computer froze with weird colored pixelation


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9 replies to this topic

#1 metalupyourmax

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Posted 25 June 2014 - 10:00 PM

THis is the second time this has happened this summer. The computer randomly locks up and the screen sort of pixelates but it becomes covered in red and green sort of squares (it looks like some fault or error) and then the screen goes black. I had to press the restart button after it happened and now my computer is fine. It is really weird and still worries me a lot. Ive done a lot of error checking and what not so I feel it might be hardware. Again, the screen messes up and almost looks like a pixelated collage of green and red rectangular squares (i can still see the desktop though, they are transparent.


Edited by hamluis, 26 June 2014 - 08:09 AM.
From Win 7 to Internal Hardware - Hamluis.


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#2 hamluis

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Posted 26 June 2014 - 08:08 AM

Three possibilities come to mind.

 

System is overheating, affecting video (just a guess, I've not actually experienced this).

 

Video drivers are damaged (seems to me that if that were true, the occurrence would be more prevalent).

 

Failing hardware (monitor or video card/chip).

 

I just thought of a fourth...RAM.  Again, I would expect a more constant occurrence if this were the problem.

 

Moved topic to Internal Hardware where better minds can take a look :).

 

Louis



#3 zingo156

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Posted 26 June 2014 - 08:34 AM

As hamluis mentioned, it could be heat related, ram, video chipset, mainboard etc. For now lets run speccy:

 

  • Go to Piriform's website, and click the big download.png button.
     
  • Next, click Download from Piriform.com (the FileHippo link requires an extra click). Or if you want to use a portable version of Speccy (which doesn't require installation), click the builds page link and download the portable version.
     
  • You will now be asked where you want to save the file. The best place to put it is the Desktop, as it will be easy to find later.
     
  • After the file finishes downloading, you are ready to run Speccy. If you downloaded the installer, simply double-click on it and follow the prompts until installation is complete. If you downloaded the portable version, you will need to unzip it before use. Right-click the ZIP file and click Extract all. Click Next. Open up the extracted folder and double-click on Speccy.
     
  • Once inside Speccy, it will look similar to this (with your computer's specifications, of course):
    p22004369.gif
  • Now, at the top, click File > Publish Snapshot
  • You will see the following prompt:
    p22004371.gif
  • Click Yes > then Copy to Clipboard
    p22004372.gif
  • Now, once you are back in the forum topic you are posting in, click the p22004370.gif button. Right-click in the empty space of the Reply box and click Paste. Then, click Add Reply below the Reply box.
  • Congrats! You have just posted your specs!

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#4 metalupyourmax

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Posted 26 June 2014 - 12:46 PM

http://speccy.piriform.com/results/aZYKZiSk1TEZDG3aZPhKopf

 

There. My video card is only a few months old and works fine, I reinstalled the drivers yesterday completely and havent gotten the pixelation yet. I ran the memory diagnostic tool a month ago (I had got the pixelation back then even) and it found no problems. Ive also run chkdsk and speccy always reports my hardware temperatures at low levels.



#5 zingo156

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Posted 26 June 2014 - 01:10 PM

Speccy shows no obvous issue... It could have been a driver problem. It also could be power related. What is your power supply and what is the wattage? Are you overclocking your 7870?

 

When the computer froze was it in game or web browsing? You could try to run furmark to test the gpu. If memtest passed it likely is not ram. You can test your cpu and ram with prime95. If you run furmark, run it 15 minutes. Prime 95 I would let run for around 30. WATCH YOUR TEMPS. Furmark will use the video card at 100% prime 95 will run the cpu at 100%. If they get too hot or close to the max safe temps, end the stress test.


Edited by zingo156, 26 June 2014 - 01:17 PM.

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#6 metalupyourmax

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Posted 26 June 2014 - 01:54 PM

My video card is on standard clock, I never touched that. The power supply is also new (i got it right before the video card) and it is an EVGA.



#7 zingo156

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Posted 26 June 2014 - 03:22 PM

I'm not certain if there will be crash dumps related to your freezes but if there are, they will help diagnose this problem...

 

We need to analyze your operating system's crash dump files to further diagnose what could possibly be crashing your computer system.

Please download Who Crashed? and save it to your desktop.

Double click whocrashedSetup.exe and choose Run

On Windows Vista, 7, 8 and 8.1 machines, when User Account Control asks if you wish to install this program, say YES to install the program on your computer.

Program can also be installed by right click and choosing Run As An Administrator.

On the next screen choose Next and accept the agreement.

Install the program in it's default location C:\Program Files\WhoCrashed (If your primary drive is different from C:, choose your primary drive.)

Choose Next and allow program to create a Start Menu Folder called WhoCrashed and click Next.

Allow program to create desktop icon and click Next.

Now Click Install.

Once the program is installed on your computer system, look for the WhoCrashed icon.png desktop Icon and double click it.

Accept the User Account Control request and the program will open on your screen and should look something like this.

whocrashed.png

Next, Click the Analyze button. analyze.png

An Information Window should appear on your screen prompting you to scroll down your screen.

If a report was generated we would like to have a look at this report.

To do this, click File analyze.png and then choose Export.

Save as WhoCrashedOutput.htm to your desktop.

Open WhoCrashedOutput.htm and copy and paste all of the contents from System Information (local) and Crash Dump Analysis and the Conclusion into your next reply.


Edited by zingo156, 26 June 2014 - 03:28 PM.

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#8 Kirbyofdeath

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Posted 26 June 2014 - 11:09 PM

:hysterical: I've seen this many times (me included!) as a result of faulty video cards. Try swapping your video card with a friends.



#9 hamluis

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Posted 27 June 2014 - 01:22 PM

FWIW:  OP has an open topic at http://www.bleepingcomputer.com/forums/t/539060/bsod-caused-by-ntoskrnlexe/, which may assist anyone in trying to determine exactly what the issues are for this system.

 

Louis



#10 zingo156

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Posted 27 June 2014 - 02:01 PM

Thank you hamluis, I will investigate this.


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