Defective GPU vs. PSU ?

fragmentq

Honorable
Jul 12, 2013
2
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10,510
Dear members,

I've been having computer problems for the last couple of months that have gotten progressively worse.

Basically: I've been getting random crashes and BSOD's. Sometimes these happen after/while a period of intense gaming, sometimes they happen at or before windows startup and sometimes nothing happens for days.

The crashes itself vary in form: sometimes it's BSOD, sometimes the pc just blacks out forcing me to do a reset and sometimes it involves screentearing with horrible horizontal lines and white snow in the image.

I've done some diagnostiscs of my own (Ran memtest, swapped and took out ram modules, made sure all drivers were up to date, bios up to date, ran prime95, ...) The crash dumps are very random in errors but almost always essentially involve the ntoskrln.exe

This morning I experienced 2 more BSOD:
- First one happening after 5 minutes. After the reset, it refused to reboot windows. A looking inside the case revealed the D1601 light on my GPU blinking. This indicates a critical temperature failure, but the computer had only been booted 5 minutes and i've never seen my temperature go over 52 even while gaming. I had to disable the computer by powering it down (holding the power button) and then start it up again.

-Second bsod was actually "caused" by me moving the case a little bit, very weird. I have also checked before that every component is set good in its socket and al power cords are connected properly.

So, basically I think it has come down to either the PSU or the GPU being the culprit.

PSU: Silver Power sp-ss500 (Seasonic OEM)
GPU: Sapphire HD 4850 Vapor-x

Any ideas on how to determine any further? Any of the above symptoms more indicative of one versus the other?

I can't swap out the graphics card since I don't have a temporary replacement.

Any help would be very much appreciated.

Greetings and good morning!



 
Solution
I dont think it would, but who knows. The HDD failing just seemed like the most likely cause to me.

The GPU I wouldn't think would be causing BSOD's, when they fail it tends to just crash the display driver and it then recovers (though in my experience after a crash its fairly unstable until you reset). Since you can game on the card without any issues I wouldn't think its the card degrading. If your CPU/Mobo has integrated graphics, try running off that and see if the issue continues.
The temperature warning light could indicate that the VRAM on the card is running too hot, if not necessarily the GPU itself. But again, dont see how that would cause a BSOD, though I can see how it can cause the screen-tearing.
Any of this look...
Random BSOD's can also be caused by a failing Hard Drive, which I think is how you managed to BSOD it by bumping the case. Try running a Linux distribution off an external USB, then do anything you can to get it to crash. If it doesnt, its a good indication that the HDD's on its way out.
 
Run the windows disc diagnostic first, it may highlight a HDD issue.
If you can't do what Manofchalk suggests, grab a S.M.A.R.T. reader off the 'net and see if it shows any HDD errors.
Or it could be a loose/dirty connection.
Try cleaning the card edge connector by GENTLY running a pen eraser over the contacts.
 
I dont think it would, but who knows. The HDD failing just seemed like the most likely cause to me.

The GPU I wouldn't think would be causing BSOD's, when they fail it tends to just crash the display driver and it then recovers (though in my experience after a crash its fairly unstable until you reset). Since you can game on the card without any issues I wouldn't think its the card degrading. If your CPU/Mobo has integrated graphics, try running off that and see if the issue continues.
The temperature warning light could indicate that the VRAM on the card is running too hot, if not necessarily the GPU itself. But again, dont see how that would cause a BSOD, though I can see how it can cause the screen-tearing.
Any of this look familiar?
http://www.playtool.com/pages/artifacts/artifacts.html

Your PSU could be the issue, even though its manufactured by Seasonic its still possible its failing or was just no good in the first place.
 
Solution

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