Problems with Sapphire AMD R9 270x 2gb artifacting

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lukectn

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Feb 2, 2014
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I purchased this card from eBay a few years ago for pretty cheap. About a year ago I started getting artifacts in the form of spikes, however they were very minor and I just ignored them, assuming it was some sort of bug. Recently, however, the artifacts have been getting worse. I believe the source of the problems is in the video RAM, because I am getting memory spikes (black spikes emitting from random objects). I ran the Windows Memory Diagnostic tool, as well as video memory stress test, and both returned zero errors. This is definitely not an overheating issue, as I play with my fan speed set to 80%, and the peak temperature my card is at while the artifacts are occurring is about 55 Celsius. I have posted a screenshot of video memory stress test as well as a screenshot of a very large memory spike in Grand Theft Auto V. What else should I try to fix this? Also, if both tests resulted in zero errors, does that mean the problem could be from somewhere else?

The screenshots can be found at http://imgur.com/a/AmXrx
 
Solution
Dunlop0078
Well assuming the artifacting isn't caused by a software issue, say old or corrupted video drivers. Then there is usually not much that can be done about aftifacting besides increasing core voltage or lowering core clocks. You can do this with software like msi afterburner, try taking 50mhz or so off the core clocks or increase the core voltage a touch and see if there is still artifacting. I'm doubtful the VRAM is causing it but you can also reduce VRAM clock speeds in afterburner as well, if the memory is unstable reducing the clocks should help.
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Dunlop0078

Dunlop0078

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Feb 13, 2014
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Well assuming the artifacting isn't caused by a software issue, say old or corrupted video drivers. Then there is usually not much that can be done about aftifacting besides increasing core voltage or lowering core clocks. You can do this with software like msi afterburner, try taking 50mhz or so off the core clocks or increase the core voltage a touch and see if there is still artifacting. I'm doubtful the VRAM is causing it but you can also reduce VRAM clock speeds in afterburner as well, if the memory is unstable reducing the clocks should help.
 
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rgd1101

rgd1101

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MERGED QUESTION
Question from lukectn : "AMD R9 270x artifacting"



 
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lukectn

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Feb 2, 2014
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I underclocked both core and memory clocks, as well as increase the power usage by +20% (the most it would let me do in AMD Overdrive), and it seemed to do the trick. I've been playing for a few hours now and haven't noticed any artifacting at all. Thanks!
 
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