64 degree celsius = wavy screen

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frizzlebyte

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Mar 21, 2013
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Hey guys, just built a new system, and I'm having a little gfx card issue. First up, overall specs (all are stock/factory overclocks):

750 watt Seasonic psu
Intel i5-3470
8GB Corsair RAM
SATA 1TB WD Hard Drive
Sapphire 100354OC-2L Radeon 7870 video card, D-Sub connected to a 19 or 20 inch Dell LCD monitor

Now, the problem: when the temperature of my card hits 63 - 64 degrees Celsius, the screen gets what I can describe as a wavy, jumpy, shimmering appearance. It is not flickering, but it's a little like electrical interference. I thought it might be my display being analog that is causing it, but when I manually turn the fan speed up and cool the card down to below 62 degrees or so, the effect stops, or at least gets better.
Is this a problem with the card itself, power supply, or would a digital monitor help the situation? What could be going on? I'm a little stumped at the moment. Thanks for the help.
 
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atomicWAR
that sounds like you might have a gpu with some thermal weakness. if it were the PSU it would likely not matter what the temp of you card is...it just be wavy all the time, had a same issue myself not long ago. i can't say conclusively its you card but honestly it's where i would be looking if i were you. if its still new and under warrenty i would send it back now while you still can and get another. you could try another graphics card should you have one laying around and see if it does the same thing. if it doesn't you know for damn near certain its the GPU.
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atomicWAR

atomicWAR

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that sounds like you might have a gpu with some thermal weakness. if it were the PSU it would likely not matter what the temp of you card is...it just be wavy all the time, had a same issue myself not long ago. i can't say conclusively its you card but honestly it's where i would be looking if i were you. if its still new and under warrenty i would send it back now while you still can and get another. you could try another graphics card should you have one laying around and see if it does the same thing. if it doesn't you know for damn near certain its the GPU.
 
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s3anister

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May 18, 2006
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First off, make sure you have the latest drivers installed directly from AMD's website. If you do, I would look into a possible RMA of your video card as this sounds more like defective hardware; normally you don't get graphical corruption like this until you're hitting 90-100+ degrees Celsius. As for using a digital monitor, it's possible you wouldn't experience any graphical corruption but you shouldn't have any corruption and the fact that you do is showing this GPUs weakness.

RMA it before it dies completely.
 
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frizzlebyte

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Mar 21, 2013
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I'll try out my card from my old system when I get a chance, but I'm almost certain it is the GPU, like you said. The card is definitely under warranty: I just got it in early March. So, Sapphire's gonna be getting an email from me to get this fixed.

One last question: Can I run the thing til I talk to Sapphire without risking damage to the rest of the system, or would I be better off to switch cards? I don't want any more problems on top of this thing.

EDIT @ S3anister: That's the temp range I'd expect issues at as well. As I said, Sapphire's gonna be replacing this one.
 
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frizzlebyte

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Will do, I don't want to spend more $$$ either. Thanks to both of you, you've been a great help guys!
 
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s3anister

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Happy to help. As for using your card until your RMA it, it's something you could do yes. It sounds like it's the GPU integrated into the die anyway so the voltage regulation and everything else is probably good to go so if it melts it shouldn't damage your system. That said, there is always a risk of multi-part failure when running faulty components.

As for the RMA itself, if you haven't had the card for more than 30 days it is almost guaranteed that you'll get a faster turnaround time if you set up the RMA through newegg or whoever you bought the card from.
 
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