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Is this PSU problem ? My GPU .......

Last response: in Graphics & Displays
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May 22, 2012 10:25:23 AM

My Galaxy GTX 460 was running well before its fan died.then i had it RMA'd but then after a month , it sstarted showing artifacts and i RMA'd it again .but things went on same and the dealer refused to replace it after failing 4 times .


All i had was artifacts problems donno why.


should i replace PSU . ? or what prolem is this ? is cpu faulty ? or motherboard ?

now i m getting GTX 550ti and Also replacing PSU with Corsair TX850 . Now is my GPU safe ?

why did i had artifacts ?

More about : psu problem gpu

a c 125 U Graphics card
May 22, 2012 10:30:28 AM

Hi

Did you monitor the temps of the GTX 460 under load?

Also what was your old PSU?
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May 22, 2012 11:44:02 AM

The temps were normal , like 45-50 Celcius . The pc would restart(this happened only while playing games ) and it was all like artifacts (like 16 bit scattered display ) .this happened to each GPU that they gave me after RMA .Four Gpus died like this only .

And my PSU (Zebronics Red Power 500 W) wasnt good but it was OK . Here in India Zebronics is an average PSU manufacturer .

I tell u the interesting part here , the last gpu when died was a bit weird becoz i was Playing witcher , and as soon as i reached a particular point on map , the gpu crashed. again when i started game after restart , reached the same point , it again crashed.after restart , the same thing happened , but afer third crash , it GPU died .
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a c 125 U Graphics card
May 22, 2012 11:59:15 AM

Its extremely unlikely that you would receive four consecutive faulty graphics cards and there's usually only three factors that cause artifacting or GPU degradation.

1) Temps are to high under load (90C+) From your previous post I would rule this one out.
2) A faulty or inadequate power supply, could well be the cause in this case.
3) Overclocking can kill a graphics card if pushed too hard, You haven't mentioned any overclocking so I'll assume this isn't the cause either.

The PSU you listed originally (TX850) is a quality unit and you shouldn't have any problems with it.
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May 22, 2012 12:28:05 PM

Have you considered that it might be your monitor? I actually just went through a similar issue with my brother's computer. He tells me that he's getting green lines and artifacts. I take a look and sure enough, there are significant graphical anomalies (i.e. Green and Blue Lines stretching across the screen, glinting or shimmering of specific colors, etc). My immediate thought was the card. So, I swapped it out for my aging 4870X2. Same problem. I knew the 4870x2 wasn't in the best of shape so I wrote it off as damaged and used a 4870 instead. Still the same issue. Finally, I swap in my last 4870, one that I know is good, and the same issue occurred.

It was his monitor. As soon as I tried it with a different monitor, it worked perfectly. We eventually switched from DVI to HDMI on his monitor and the artifacts went away. I've seen my share of GPU graphical artifacts (two 4850's in a poorly ventilated case is a recipe for disaster) and they looked IDENTICAL to the anomalies on the monitor. Try a different monitor or a different input on your monitor; It might help.
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a b U Graphics card
May 22, 2012 1:17:00 PM

pratmodi said:
The temps were normal , like 45-50 Celcius .


45-50 degrees C seems rather cool for a GTX460 under load. Are you sure those are your GPU temps and not your CPU temps?
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a b U Graphics card
May 22, 2012 2:05:48 PM

That is a very interesting post about the monitor causing graphical anomalies. It doesn't seem unreasonable to me that if a monitor is poorly grounding the shell of the monitor-pc connection (or has a voltage on it's end of the shell connector), that it could actually cause your video card to operate improperly and die.

I had a friend who was seeing some really weird behavior with his monitor and his video cards, and I started suspecting the monitor in a similar way.
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a c 125 U Graphics card
May 22, 2012 2:13:21 PM

I doubt the monitor would be the problem in this case as when the OP RMAed the graphics cards the retailer would have tested the graphics cards on a different monitor and obviously found the same issue.
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May 22, 2012 6:33:33 PM

Xenturion said:
Have you considered that it might be your monitor? I actually just went through a similar issue with my brother's computer. He tells me that he's getting green lines and artifacts. I take a look and sure enough, there are significant graphical anomalies (i.e. Green and Blue Lines stretching across the screen, glinting or shimmering of specific colors, etc). My immediate thought was the card. So, I swapped it out for my aging 4870X2. Same problem. I knew the 4870x2 wasn't in the best of shape so I wrote it off as damaged and used a 4870 instead. Still the same issue. Finally, I swap in my last 4870, one that I know is good, and the same issue occurred.

It was his monitor. As soon as I tried it with a different monitor, it worked perfectly. We eventually switched from DVI to HDMI on his monitor and the artifacts went away. I've seen my share of GPU graphical artifacts (two 4850's in a poorly ventilated case is a recipe for disaster) and they looked IDENTICAL to the anomalies on the monitor. Try a different monitor or a different input on your monitor; It might help.





The Retailer wasn't an Asshole. he checked every gpu i gave to him and confirmed the same problem.
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May 22, 2012 6:39:31 PM

well my apologies here , coz i forgot actual temps i monitored. but now i confirm that the temps were around 65-75 celcius . but i think these aren't too high ,
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May 22, 2012 6:40:43 PM

clarkjd said:
45-50 degrees C seems rather cool for a GTX460 under load. Are you sure those are your GPU temps and not your CPU temps?


well my apologies here , coz i forgot actual temps i monitored. but now i confirm that the temps were around 65-75 celcius . but i think these aren't too high ,
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a c 125 U Graphics card
May 22, 2012 6:46:49 PM

pratmodi said:
well my apologies here , coz i forgot actual temps i monitored. but now i confirm that the temps were around 65-75 celcius . but i think these aren't too high ,


Load Temps under 90C shouldn't cause a problem so your fine at 75C.
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May 22, 2012 6:54:42 PM

Rustyy117 said:
Its extremely unlikely that you would receive four consecutive faulty graphics cards and there's usually only three factors that cause artifacting or GPU degradation.

1) Temps are to high under load (90C+) From your previous post I would rule this one out.
2) A faulty or inadequate power supply, could well be the cause in this case.
3) Overclocking can kill a graphics card if pushed too hard, You haven't mentioned any overclocking so I'll assume this isn't the cause either.

The PSU you listed originally (TX850) is a quality unit and you shouldn't have any problems with it.


well my apologies here , coz i forgot actual temps i monitored. but now i confirm that the temps were around 65-75 celcius . but i think these aren't too high ,
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a c 125 U Graphics card
May 22, 2012 6:55:31 PM

See my previous post ;) 
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May 22, 2012 7:00:10 PM

Rustyy117 said:
Its extremely unlikely that you would receive four consecutive faulty graphics cards and there's usually only three factors that cause artifacting or GPU degradation.

1) Temps are to high under load (90C+) From your previous post I would rule this one out.
2) A faulty or inadequate power supply, could well be the cause in this case.
3) Overclocking can kill a graphics card if pushed too hard, You haven't mentioned any overclocking so I'll assume this isn't the cause either.

The PSU you listed originally (TX850) is a quality unit and you shouldn't have any problems with it.


well i overclocked my first default gpu but then the RMA'd ones i didnt overclocked . But i want to ask a question here . that i overclocked with MSi afterburner , but in later cards i didnt overclocked them manually with software , does these softwares O.C. gpu automatically once O.C.'d ??
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a c 125 U Graphics card
May 22, 2012 7:22:10 PM

pratmodi said:
well i overclocked my first default gpu but then the RMA'd ones i didnt overclocked . But i want to ask a question here . that i overclocked with MSi afterburner , but in later cards i didnt overclocked them manually with software , does these softwares O.C. gpu automatically once O.C.'d ??


I think the PSU was the issue dude. :p 
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May 29, 2012 5:04:51 AM

Best answer selected by pratmodi.
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