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Can a bad PSU cause artifacts? - Page 2

post #11 of 18
Artifacts appear in small squares all over textures.

Do you mean that certain textures in your games show corruption eg there may be pink or other coloured squares on the actual textures themselves
or are you seeing black and white or multicoloured squares "moving" rapidly onyour screen regardless if they are on a texture or not?

Artifacts and texture corruption are very different things
post #12 of 18
Thread Starter 
Had to step out for a bit! Thanks for the quick responses peeps.

Quote:
Originally Posted by Dust View Post
PSUs don't cause artifacts.
When did the problem start? - Any new software you remember installing prior to artifacts? Any voltage/clock tweaking? Do they appear under stock volt & frequency?
How long do they take to appear? - Immediately or only under tremendous stress?
What is the state of your 9800GT? I have a feeling it was already a goner to begin with.
  • The problem started with my 560 Tis ~ a month ago, maybe a little more.
  • No new software, other than game DLs
  • Yes, both cards were overvolted and OC'd, though my current card isn't.
  • Yes they would appear at stock clocks.
  • They appear very sporadically. Like I can play for an hour or two and get nothing, or I can see them in the first few minutes of gaming.
  • The 9800GT is brand new. There is a chance it could have just been defective as well, but considering everything else IDK how likely that is.
Quote:
Originally Posted by Spooony View Post
Artifacts appear in small squares all over textures.

Do you mean that certain textures in your games show corruption eg there may be pink or other coloured squares on the actual textures themselves
or are you seeing black and white or multicoloured squares "moving" rapidly onyour screen regardless if they are on a texture or not?

Artifacts and texture corruption are very different things
Neither, I'm talking about mis-rendered geometry.

Something like this:


But it's not persistent and usually doesn't cover the entire screen like that. The best way I can describe it is like a single frame where an object in the background is mis-rendered like above, and then it's gone. For what it's worth though, it does seem to happen in certain areas more often than others.
Edited by Booty Warrior - 6/7/11 at 5:55pm
post #13 of 18
I would do like someone else said and go to Best Buy and grab you another PSU. This way you can atleast eliminate the PSU as being the problem. Also Best Buy has a excellent return policy. They will accept returns on computer hardware for a FULL refund.
So if it turns out that it is not your psu you could return the psu so long as it it in perfect condition and get your money back.


I dont know specifically if psu's can cause artifacts, but since you are having the same problem or similar with new hardware I tend to agree that it could be your psu.

I do have a theory as to what could be going on with the artifacts:

If your psu is going bad or is faulty it might not be sending clean power to your components. If your video cards are not receiving clean power they could produce artifacts. This might present itself more often when the video cards are overclocked.

Keep us updated with what you find out and good luck I hope you get this resolved.
Edited by AliceInChains - 6/7/11 at 5:59pm
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post #14 of 18
Almost never caused by the PSU.


My guess is that your cards are overheating.
post #15 of 18
They can if they're producing voltages wildly out of spec, but 99% of the time, they either work or there's smoke.
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post #16 of 18
I remember years ago I connected a car amp to the PSU in my computer and whenever I would game on BF2142 there would be artifacts or it would crash. I took the car amp out of the equation and then everything worked fine. So yes it could happen in very rare case scenario.
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post #17 of 18
Quote:
Originally Posted by Booty Warrior View Post
  • The problem started with my 560 Tis ~ a month ago, maybe a little more.
  • No new software, other than game DLs
  • Yes, both cards were overvolted and OC'd, though my current card isn't.
  • Yes they would appear at stock clocks.
  • They appear very sporadically. Like I can play for an hour or two and get nothing, or I can see them in the first few minutes of gaming.
  • The 9800GT is brand new. There is a chance it could have just been defective as well, but considering everything else IDK how likely that is.
Wow odd. Anyway what the others say is true. Psus either make stuff work or make them smoke, only in extremely rare cases does the psu give unstable voltages to the hardware, which could explain the periodic artifacts. Even if that were to be true, it would occur not only in games, but in your daily tasks including mere youtube videos.

Some basic troubleshooting tips: Did you install the cards in a low/no static environment(no carpets)?, have you cleared the dust from all your connectors(your video output & pci lane's interior)? Also you could try testing ram sticks 1 by 1.

Best thing to do is to bring whatever it is you think is faulty down to the people who are giving you the RMA and make them test it on the spot. It's basic customer service and they should not deny you of it - especially if you mention your unique case. They usually have a bunch of technicians at the back hoarding a buttload of psus for your testing pleasure ^_^
Edited by Dust - 6/8/11 at 1:15am
post #18 of 18
Thread Starter 
So turns out it is just another faulty card. Tested it in a friend's machine and ran OCCT, it gave 1k errors in the first 2 minutes then bluescreened. Le sigh.

Thanks for the help peoples. Reps inc.
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