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GPU not working with HDMI?

Flaygonri
By Flaygonri
in Graphics Cards
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So I just recently built a computer, and just today, my computer was randomly losing connection with my monitor. I've tested it, and I'm 90% sure it's the GPU. I connect it to my monitor with an HDMI cable, and the cable works perfectly fine. Whenever I try to output anything from the GPU it doesn't show up. I've tried a TV and it doesn't work. What's the problem here? 

GPU: Sapphire 280 3GB
Monitor: LG 23MP65

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https://linustechtips.com/topic/176422-gpu-not-working-with-hdmi/
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Got any other cable?

i5 4670k @ 4.2GHz (Coolermaster Hyper 212 Evo); ASrock Z87 EXTREME4; 8GB Kingston HyperX Beast DDR3 RAM @ 2133MHz; Asus DirectCU GTX 560; Super Flower Golden King 550 Platinum PSU;1TB Seagate Barracuda;Corsair 200r case. 

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My monitor supports VGA and HDMI, while my GPU supports Displayport, HDMI, and DVI. I've tried using a HDMI to VGA adapter, but it just didn't work out.

Do you also have an integrated GPU?(do you use intel?)

i5 4670k @ 4.2GHz (Coolermaster Hyper 212 Evo); ASrock Z87 EXTREME4; 8GB Kingston HyperX Beast DDR3 RAM @ 2133MHz; Asus DirectCU GTX 560; Super Flower Golden King 550 Platinum PSU;1TB Seagate Barracuda;Corsair 200r case. 

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yup, that's what I'm currently typing on, since I have to plug the HDMI into the MOBO

Try VGA to DVI(via Vga adapter)

If problem persists consult your doctor.

I mean RMA ur card

i5 4690k @ 3.5Ghz | Stock Cooler :/ | ECS Gank Machine Z87H3-A2X EXTREME | Gskill RipjawsX 8GB 1600Mhz | MSI GTX 960 100th ME 2GB | Samsung 840 Evo 120GB | 1TB WD Caviar Blue | Seasonic m12ii evo 750W | Razer Modded Phantom 410

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