MSI 770 GTX weird horizontal lines

InfiltratorSF · Sep 23, 2013

Hi, I just got my new rig,

Intel Core i5-4570 3.2Ghz Quad-Core Processor
MSI N770 TF 2GD5/OC
MSI s1150 INTEL B85M-E45
Kingston 4GB HyperX Blu1600MHz DDR3 x 2
LC Power LC8700II V2.3 700W 1 95,00 € 95,00 €

And my GPU is behaving weirdly, even when I turn on vsync on, during most games I can see horizontal interference. This is more obvious with vysinc disabled but still very apparent with it on.

What should I do?

adimeister · Sep 23, 2013

Is it screen tearing that you mean? CHeck youtube for more samples of screen tearing, if it's not, then it's your GPU's fault. RMA it.

InfiltratorSF · Sep 23, 2013

Well youtube is fine, I'm pretty confident it's the GPU since this is only happening in games. I'm also converting the dvi to vga (via the swtich I got from the card box of course), could that be it?

it's not screen tearing, more like flickering horizontal bars to be honest.

Mahisse · Sep 23, 2013

Lol that's not what he meant.. he meant for you to go to youtube and search for videos with screen tearing examples

Is the problem only when gaming or is it constant?

InfiltratorSF · Sep 23, 2013

My bad, I assumed he wanted to know, just like you, if the problem was isolated to 3d apps - yes, yes it is. The flickering I have is subtle, but noticable, like little horizontal lines (maybe each worth 5% of the monitor height) moving up in a paraller fashion. They are slightly darker than the rest of the screen (and by slightly I mean maybe 2-3%).

My card temp doesnt go over 40 celsius.

Mahisse · Sep 23, 2013

OK so you already tried to enable VSync and it only helped a little? Your card came overclocked from the factory. Did you overclock it further yourself?
What monitor are you using? Do you have another monitor you can test on?

adimeister · Sep 23, 2013

LOL @ youtube.

So it's not screen tearing? Tried updating your driver? 40C is very low for a GPU under load!

InfiltratorSF · Sep 24, 2013

Solved it. It was my UPS - the power supply I have is 750 W, when I plugged both the monitor and the power supply on different sockets, directly, no more interference was present. So I guess it was just the card/monitor not getting enough juice through the UPS.

adimeister · Sep 24, 2013

Nice, I didn't think about that. haha

chriscshunter · Jun 1, 2014

Very happy for this topic, this resolved the same issue for me. I just did a move recently and had the monitor and power supply on the same surge protector, and once I moved the monitor to another outlet the lines went away.

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MSI 770 GTX weird horizontal lines

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