I get an occasional pixelation/flickering

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Lemonyshift

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Oct 6, 2013
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I just bought my first gpu, a msi radeon HD 7850 2gb OC for my PC and I get this occasional pixilation or flickering on my screen. I installed the latest drivers, I'm pretty sure a 750watt psu is more than enough power, it doesn't go over 40 degrees Celsius. I've even turned down to stock company cling speeds. But they t doesn't get rid of the problem permanently.Could it just be I have some dust in my PC?
Using an i5-4670,z87 Asus sabertooth motherboard, a corsair semi modular 750watt psu, 2 4gd hyperX memory at 1300mhz, in an antec 900 series case, running wnidows 8.
 
Solution
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Dust in your PC wouldn't cause pixelation.

Have you made sure that the DVI/HDMI/DP port is securely connected to both the monitor and video card? Also have you made sure that the contacts on the cable are clean?

Given that you say underclocking solves the problem its most likely that the memory is clocked too high. Does the problem persist when the clocks have been reset? There are multiple profiles your card clocks and it could be that one of the profiles OC is unstable so when it reverts to it from your custom OC the issue reappears.
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llkashll

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Jun 13, 2013
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Dust in your PC wouldn't cause pixelation.

Have you made sure that the DVI/HDMI/DP port is securely connected to both the monitor and video card? Also have you made sure that the contacts on the cable are clean?

Given that you say underclocking solves the problem its most likely that the memory is clocked too high. Does the problem persist when the clocks have been reset? There are multiple profiles your card clocks and it could be that one of the profiles OC is unstable so when it reverts to it from your custom OC the issue reappears.
 
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bobusboy

bobusboy

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Jul 3, 2009
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Those are all digital connections; either they work or they don't there is no analog pixelation or static with those connections.

If you're not over clocking/over volting the GPU then it's likely that you have a bad GPU. IMO you need to RMA it or try increasing the vcore on the gpu and see what happens.

 
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