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My QNIX has artifacts on 60Hz but not 110Hz

post #1 of 8
Thread Starter 
This morning my monitor suddenly has artifacts on 110Hz, and I switch it back to 60Hz and reboot, but the problem didn't go away.
after several reboot I change the refresh rate back to 110Hz, the artifacts went away.

but when I tried to change it back to 60Hz, I can see the screen is kind of flashing, it's not the kind of flash because my eyes get use to the higher refresh rate.

so is my monitor dying? or my video cards (I water cooled my 7970s and mining coins for about 4 month, well this morning just found the tubes are banded and sucked to flat:o, so my cards running at 65C for several days)

I tried to connect my rig to a old 22" monitor (1920*1080), and everything looks fine.

get confused, I am going to try my monitor on other rig and see if it works fine.
post #2 of 8
It shouldn't be your cards - at least not the temp issue. 65C is definitely acceptable (albeit warm) for most modern GPUs. Let us know the results of checking with a different monitor!
post #3 of 8
Did you set the 110Hz refresh rate with a custom resolution utility? You may have messed with a timing that is breaking 60Hz
post #4 of 8
Thread Starter 
I agree that it seems videos cards are OK, because connect with another 1080p monitor, doesn't have any problem at all

I am using the CRU to overclock the monitor to 110Hz, but now the thing is
when I connect the monitor to another 7970 card, the monitor is still having the same flashing
it's total different rig without CRU installed。

does it mean the monitor is dying?
post #5 of 8
That's what I would guess :/ I don't know much about these Korean monitors though.
post #6 of 8
Quote:
Originally Posted by CarsonKT View Post

I agree that it seems videos cards are OK, because connect with another 1080p monitor, doesn't have any problem at all

I am using the CRU to overclock the monitor to 110Hz, but now the thing is
when I connect the monitor to another 7970 card, the monitor is still having the same flashing
it's total different rig without CRU installed。

does it mean the monitor is dying?

You could have damaged your panel by overclocking it more than it can handle. I have one as well, and I switch to 110hz -only- when I'm playing a game that I know I can achieve 80+ FPS with. Overclocking it can cause contrast issues, color retention, and as said previously, potential damage.
post #7 of 8
Thread Starter 
actually I only switch to 110Hz when gaming as well, but I forget to make the switch quite often,
so it stays @ 60Hz for most of the time.

it's really frustrated, I am still waiting my new tubing to be delivered, the one in the rig is squeezed like a pie rather than a pipe
till then I won't be able to do any further test on my monitors.

the good thing is, the monitor is still under warranty, but the bad thing is I throw all package away frown.gif
post #8 of 8
Thread Starter 
Finally, got all parts I need to restore the waterloop of my rig, and once it's done I notice all the symptoms are gone, interesting:rolleyes:
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