Can I overclock my GPU again?

[Denoxx]

Hey guys

 

I have overclocked my GPU (GTX 780) yesterday to an overclock of 1GHZ+ on my memory and an +180MHz on the GPU core. Now I have to say that I am running a triple screen setup. Today I was benchmarking my graphics card with 3dMark (the test ran only on my middle screen, out of three), when suddenly my right monitor, the one I wasnt benching on, turned full of artifacts. In panic I shut down my system, thinking that my overclock went out of control. But when I started up the system again, the screen stayed wrecked. I tried it on a different computer to test wheter it was my gpu that was defect, but the monitor was wrecked on the other system too. So I bought a new one today but I now fear, that when I overclock my graphics card again, it will wreck some of my monitors again. 

 

Can this happen due to a bad overclock? (My temps were ok, I was monitoring when it happened) or was it just a screen-failure, that had nothing to do with my GPU? I really hope you can answer me that question, because I liked overclocking and I hope that I am able to do it again.

[mvitkun]

@Denoxx

 

to the best of my knowledge a bad gpu overclock can't actually destroy a monitor.

 

overclocking the monitor to high refresh rates can however cause adverse effects on the lifespan of the monitor.

there are some scenarios where gpu overclocking could kill a monitor,though they're mostly jokes.

 

ex.

you're overclocking your GTX 780 on a Dell OEM 400 watt power supply with no overvolt protection,after a while the power supply catches fire,burns your computer and then fire starts coming out of the vents on the side of your sidepanel that torch the display. 

[HirgaLTTki]

Artifacts are not monitor problems. Lower your clock, most probably unstable speeds. 

[mvitkun]

Artifacts are not monitor problems. Lower your clock, most probably unstable speeds. 

he tested it on a different system,it was the monitor.read the entire post.

[Irontheater]

I have no idea how overclocking a Video Card could wreck your monitor. It's not possible.

 

There are 3 reasons why you might be observing this:

 

-You overclocked a bit too much, and as usual, artifacts showed up. What doesn't make it usual is that the artifacts stayed after you restarted your PC, but were gone when you changed your monitor. I would suggest trying back your old one, and see if the problem persists.

 

-You have damaged the HDMi output hardware port due to overclocking. This is possible, but very, very rare. Though still possible. (maybe when u changed monitors you used another port/VGA-out)

 

-With the GTX780, it's actually possible to overclock your Monitor screen, which destroys it in some cases. Maybe you turned up the refresh rate accidentally, and by that, your monitor was burned out?

 

 

I suggest lowering your clocks, and trying out the old monitor in a different Port than the one you used the first time to ensure that it is still working.

I

[HirgaLTTki]

he tested it on a different system,it was the monitor.read the entire post.

 

Oh i thought he used another monitor, derp

[mvitkun]

Oh i thought he used another monitor, derp

well he bought another monitor,so he did use a different monitor after having tested the dead monitor on a different system.

[Art Vandelay]

Artifacts are not monitor problems. Lower your clock, most probably unstable speeds. 

No, they can easily be monitor problems. It's just a lot more rare.

[Denoxx]

I have no idea how overclocking a Video Card could wreck your monitor. It's not possible.

 

There are 3 reasons why you might be observing this:

 

-You overclocked a bit too much, and as usual, artifacts showed up. What doesn't make it usual is that the artifacts stayed after you restarted your PC, but were gone when you changed your monitor. I would suggest trying back your old one, and see if the problem persists.

 

-You have damaged the HDMi output hardware port due to overclocking. This is possible, but very, very rare. Though still possible. (maybe when u changed monitors you used another port/VGA-out)

 

-With the GTX780, it's actually possible to overclock your Monitor screen, which destroys it in some cases. Maybe you turned up the refresh rate accidentally, and by that, your monitor was burned out?

 

 

I suggest lowering your clocks, and trying out the old monitor in a different Port than the one you used the first time to ensure that it is still working.

I

I swaped the ports with the one of the monitor that worked but the dead monitor was still full of artifacts, so it had to be the monitor.

how could i have turned up the monitor refresh rate? 

[Denoxx]

No, they can easily be monitor problems. It's just a lot more rare.

 

So is it possible that the screen just died, due to some kind of screen failure? The chance that this would happen at the same time I was testing my overclock is SO small.... But on the other hand I cant understand how a benchmark can kill a screen it wasnt even benching on....

[Art Vandelay]

So is it possible that the screen just died, due to some kind of screen failure? The chance that this would happen at the same time I was testing my overclock is SO small.... But on the other hand I cant understand how a benchmark can kill a screen it wasnt even benching on....

Well, the benchmark was probably putting more stress on the screen than normal usage, since it probably had to change colors rapidly. I can't imagine an overclock damaging a monitor, though.

[Denoxx]

Well, the benchmark was probably putting more stress on the screen than normal usage, since it probably had to change colors rapidly. I can't imagine an overclock damaging a monitor, though.

 

But it was just a one-monitor benchmark which means that all the fancy graphics were just on the middle screen. on the other two screens was just the desktop, and the one with the desktop died, not the one I was actually putting stress on.... crazy thing ^^ I'm now unsure if I want to overclock again..

[brownninja97]

@Denoxx

 

to the best of my knowledge a bad gpu overclock can't actually destroy a monitor.

 

overclocking the monitor to high refresh rates can however cause adverse effects on the lifespan of the monitor.

there are some scenarios where gpu overclocking could kill a monitor,though they're mostly jokes.

 

ex.

you're overclocking your GTX 780 on a Dell OEM 400 watt power supply with no overvolt protection,after a while the power supply catches fire,burns your computer and then fire starts coming out of the vents on the side of your sidepanel that torch the display. 

Those dell psus are crazy, 80+ gold 300w. The thing is bloody heavier then a cx600 or cx750.