Weird colored horizontal lines and black screen crashes

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thegameplaysk

Thread Starter
Joined
Jul 15, 2010
Messages
46
Origin of the problem:
The other day I tried to play a game called Sir, You are being hunted. I got to the main menu and set graphics to max because the game didn't look very demanding. I started a new game and everything seemed to be going fine but once the loading finished and my computer tried to render the world I got several weird graphical glitches on my two monitors - everything was going blue or brown and there were these strange horizontal lines everywhere. After about 15 seconds the computer became unresponsive and I had to turn it off manually.

The problem:
When I booted it back up there were these weird colorful horizontal lines across the screen (about 6-8). They only appeared once Windows actually loaded (so they weren't there when the Windows 7 logo was displayed during the load.) I have by default set the classic windows 2000+- theme and explorer and system-related stuff like that seems fine. But when I open Chrome for example the whole screen goes black, PC becomes unresponsive and I have to shut it off the hard way.
The colorful horizontal lines make me think that it is my GPU dying on me. It's a 6870 that I had since 2011. I don't have spare PC so I am not sure how to actually test this theory. If I go to safe mode however, the graphical glitches are not there and everything seems to go fine which further leads me to believe that the failures are graphics card related.

What I tried:
I opened up the PC, cleaned all the dust out, took the cover off the GPU and cleaned it as well, put it back together and reinstalled the drivers in safe mode, checked for disk errors, defragmented, restored the system to a previous point in time (not in that order) and the issue prevails.

Questions:
Is it safe to assume that the problem is GPU related?
If not, how can I test the components considering that I do not have a second PC to try the components in?
If it is, would you help me choose a new graphics card? I would like to stick to around 130-180 euros. If you know of such a card with decent performace please feel free to recommend! Also this site currently has some nice discounts within that price range available in my country. The site might not be translated perfectly but that's all I got atm.

System information:
PartPicker:
Here
SysInfo:
OS Version: Microsoft Windows 7 Ultimate, 64 bit
Processor: Intel(R) Core(TM) i5-3450 CPU @ 3.10GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 4
RAM: 8155 Mb
Graphics Card: AMD Radeon HD 6800 Series, 1024 Mb
Hard Drives: C: Total - 305242 MB, Free - 142578 MB;
Motherboard: Gigabyte Technology Co., Ltd., H61M-DS2
Antivirus: ESET Smart Security 9.0.318.0, Updated and Enabled​

Please let me know if you guys need adittional information and thank you in advance for any help or advice.

 

thegameplaysk

Thread Starter
Joined
Jul 15, 2010
Messages
46
Any advice regarding the problem or a recommendation for a new graphics card? I need your help more than ever guys!
 

Saturable

Mark
Joined
May 2, 2016
Messages
366
It could either be a PSU problem or a graphics card problem. I see you have a 600W power supply, and while I am no expert in power supply ratings, 600W should be enough to power your system. If, however, it were going bad, it wouldn't be supplying enough power to your system (including the graphics card) and thus would result in your graphical glitches.

But sometimes the answer is the simplest one. Since you're having these problems visually, it could very well be a graphics card issue. Although, if it was, you'd have these graphical glitches in safe mode as well. Unless it's your PSU and safe mode uses less power, which might be possible (but unlikely), then your card is at fault.

Your budget is just under $200 USD, and you can get some pretty satisfactory cards at that price. The Radeon RX 480 is slightly out of your price range, but it's a surprisingly powerful card if you don't mind that it comes from the red team. I'm not good at recommending PC parts however, so we'll wait for others who are.
 

thegameplaysk

Thread Starter
Joined
Jul 15, 2010
Messages
46
It could either be a PSU problem or a graphics card problem. I see you have a 600W power supply, and while I am no expert in power supply ratings, 600W should be enough to power your system. If, however, it were going bad, it wouldn't be supplying enough power to your system (including the graphics card) and thus would result in your graphical glitches.

But sometimes the answer is the simplest one. Since you're having these problems visually, it could very well be a graphics card issue. Although, if it was, you'd have these graphical glitches in safe mode as well. Unless it's your PSU and safe mode uses less power, which might be possible (but unlikely), then your card is at fault.

Your budget is just under $200 USD, and you can get some pretty satisfactory cards at that price. The Radeon RX 480 is slightly out of your price range, but it's a surprisingly powerful card if you don't mind that it comes from the red team. I'm not good at recommending PC parts however, so we'll wait for others who are.
Thank you for your response. Regarding the graphical glitches in safe mode - the PC does not use the GPU in safe mod though, right? So if it is GPU fault, then it makes sense that the glitches would not be there. See when I went into safe mode the gfx card was unavailable so I assumed that safe mode doesn't use it.

Is there any way to test the PSU?

EDIT: The RX 480 is indeed out of my price range but what do you think about the R9 380? It seems to perform better than the price equivalent Nvidia GTX980. Would my system be able to handle it? My PSU is 600W so I think it should, right?
 
Last edited:
Joined
Jan 7, 2014
Messages
2,638
Your board has on-board video , have you tried switching to that and see if it does the same? You would have to move your monitor cable to the on-board connection and maybe remove the 6870 to check. Some times the bios has a setting for on-board or add-on.
 

thegameplaysk

Thread Starter
Joined
Jul 15, 2010
Messages
46
Your board has on-board video , have you tried switching to that and see if it does the same? You would have to move your monitor cable to the on-board connection and maybe remove the 6870 to check. Some times the bios has a setting for on-board or add-on.
Well I removed the graphics card and pluged it in 1280x1024 monitor (My other ones have different connector than the onboard one requires) and everything seems to be working fine. So I guess it's safe to say that it's the fault of the GPU.
 
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