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post #11241 of 25942
Quote:
Originally Posted by HardwareDecoder View Post

nope, these same settings were rock solid on my 7950's never once had display corruption. Now with this 290x it seems to happen a lot.

I don't think it is the 290x though. I'm gonna try LCD standard for awhile see if that works... I didn't even think of that till now thanks.


I was running with lcd standard the whole time, seemed to lower the gpu clocks at idle where the other way didn't for me. Just played crysis 3 while i wait for bf4 to download again for about a hour with no issues, becoming more hopeful my issue was windows 8, real test will be bf4, i really don't want to have to return this card.

Just seeing that pic makes me miss windows 8.1 already sadsmiley.gif lol.
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post #11242 of 25942
yea running with lcd standard timings for 110hz didn't work, was getting those blue lines across the screen (the normal ones when pixel clock is too high)
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post #11243 of 25942
Quote:
Originally Posted by Jetlitheone View Post

That's pretty big... Mines only about a couple cm in size. Maybe it's dust? Can you see it from any angle?

Yeah. I can see it at any angle.
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post #11244 of 25942
Quote:
Originally Posted by HardwareDecoder View Post

yea running with lcd standard timings for 110hz didn't work, was getting those blue lines across the screen (the normal ones when pixel clock is too high)

Are you remembering to copy the original monitor profile and just edit the refresh rate? Doing it in this manner made it work flawless on my 290. It seems like you're either using old profiles or a pre-defined one (such as LCD standard) as opposed to the stock one for the monitor.

The way to do this was to: Double-click the top-most detailed resolution (2560x1440 @ 59.950 Hz (241.50 MHz) [+/-]) Click copy.

Then click Add to add a new detailed resolution.

Now, in order to paste, CRU only allows you to do this when selecting Automatic - CRT Standard under the Timing drop down. From there paste your default profile and only change the Refresh rate to your desired frequency.

For example, here's a screenshot of my 96Hz Profile if you want to try these settings (I mostly use 120 though).


Edited by TamaDrumz76 - 12/17/13 at 2:15pm
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post #11245 of 25942
Quote:
Originally Posted by TamaDrumz76 View Post

Are you remembering to copy the original monitor profile and just edit the refresh rate? Doing it in this manner made it work flawless on my 290. It seems like you're either using old profiles or a pre-defined one (such as LCD standard) as opposed to the stock one for the monitor.

The way to do this was to: Double-click the top-most detailed resolution (2560x1440 @ 59.950 Hz (241.50 MHz) [+/-]) Click copy.

Then click Add to add a new detailed resolution.

Now, in order to paste, CRU only allows you to do this when selecting Automatic - CRT Standard under the Timing drop down. From there paste your default profile and only change the Refresh rate to your desired frequency.

For example, here's a screenshot of my 96Hz Profile if you want to try these settings (I mostly use 120 though).


yeah that doesn't work I get lines on the screen cause the pixel clock is too high
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post #11246 of 25942
Quote:
Originally Posted by HardwareDecoder View Post

yeah that doesn't work I get lines on the screen cause the pixel clock is too high

It makes no difference on mine (as it works exactly the same either way), but have you tried toggling the following in Catalyst Control Center [My Digital Flat-Panels] > [Properties (Digital Flat-panel)]

Reduce DVI frequency on high-resolution displays

Alternate DVI operational mode

Also make sure GPU scaling is off.

I find it strange that your monitor would work with your previous video card but not the 290x at overclocked refresh rates...
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post #11247 of 25942
Quote:
Originally Posted by TamaDrumz76 View Post

It makes no difference on mine (as it works exactly the same either way), but have you tried toggling the following in Catalyst Control Center [My Digital Flat-Panels] > [Properties (Digital Flat-panel)]

Reduce DVI frequency on high-resolution displays

Alternate DVI operational mode

Also make sure GPU scaling is off.

I find it strange that your monitor would work with your previous video card but not the 290x at overclocked refresh rates...


Everything makes a difference. Each monitor can only handle a specific pixel clock before you get blue lines etc, those settings I posted earlier worked great @ 110hz on my old video card. So either something is up with my 290x or the monitor has degraded.

here is what he said:

http://120hz.net/showthread.php?1410-Alternate-DVI-operational-mode

These options aren't really documented, so I can only guess based on what I know.

"Reduce DVI frequency on high-resolution displays" probably has no effect on most monitors. Back when video cards, monitors, and cables could barely handle the full single-link DVI bandwidth, some people were having signal quality problems with 1600x1200 monitors like the Dell 2001FP. 1600x1200 @ 60 Hz without reduced blanking is close to the single-link DVI limit of 165 MHz, so that option would use the CVT reduced blanking standard to reduce the pixel clock to around 130 MHz to get a more stable signal, similar to how we reduce the timing parameters to get a better overclock. Nowadays, most LCD monitors use CVT reduced blanking by default (or EIA/CEA-861 for 1080p), so that option wouldn't have any effect. It should be left off so it doesn't mess with the timing parameters.

"Alternate DVI operational mode" is coherent mode, meaning the clock and data are synchronized. Originally, DVI was non-coherent because the clock multiplier caused a delay in the clock signal that needed to be compensated for at the receiving end. This caused problems when using longer cables because the length affected the delay. Nowadays, everything is designed to use coherent signals for better stability, so this option should be left on. It shouldn't be turned off unless you're using an older non-coherent display.


So it seems I should not use reduce dvi frequency

What I really don't get is how changing video cards changes my max stable monitor OC. I mean aren't the video card and the monitor separate, all the vid card does is sends a signal to the monitor.
Edited by HardwareDecoder - 12/17/13 at 3:32pm
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post #11248 of 25942
What would be really awesome is if ToastyX could chime in and maybe point me in the direction of what is going in. I have very limited knowledge about what my actual issue could be. Is it likely my 290x is some how off? Or the monitor has degraded some?

Everything works flawlessly @ 60hz.

Like the settings I posted earlier came from Spartan F8 or someone else who actually has a clue about what all the numbers mean. They worked fine forever @ 110hz on my 7950's

If I tried to use the normal settings from my monitor and put 110hz I get blue lines because the pixel clock is too high or something.

I know plenty about oc'ing cpu's but not that much about monitors lol.

My recent problem is just getting random display corruption @ anything over 60hz with this new card.
Edited by HardwareDecoder - 12/17/13 at 3:45pm
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post #11249 of 25942
Quote:
Originally Posted by HardwareDecoder View Post

What would be really awesome is if ToastyX could chime in and maybe point me in the direction of what is going in. I have very limited knowledge about what my actual issue could be. Is it likely my 290x is some how off? Or the monitor has degraded some?

Everything works flawlessly @ 60hz.

Like the settings I posted earlier came from Spartan F8 or someone else who actually has a clue about what all the numbers mean. They worked fine forever @ 110hz on my 7950's

If I tried to use the normal settings from my monitor and put 110hz I get blue lines because the pixel clock is too high or something.

I know plenty about oc'ing cpu's but not that much about monitors lol.

My recent problem is just getting random display corruption @ anything over 60hz with this new card.

I know a few things wink.gif

Honestly if you haven't changed anything from the last card to this one it is possible that the older card had better overclocking capabilities but i am very skeptical that is the case. I have seen it happen, my GTX770s in SLI overclocked better than my GTX780ti does.

The max pixel clock of the PCB of the Qnix is 450mhz. With that being said you should easily be able to do 72hz or 96hz with even stock timings. If your running fine at 60 but have issues past that then it sounds like implementation not capabilities.

I would start with some basics. Re-install drivers. Completely redo your CRU profiles. Try just LCD reduced before tinkering with the manual timings since LCD reduced for 96hz is well under the 450mhz ceiling. Also try different ports on your card as not all ports have the same overclockability(shown in my past posts). If your using the same cable it is probably OK but you never know, you could have kinked it or chipped the pins when swapping so the cable is a potential factor.

Also i would leave any voltage or timing effective driver level option default and stick with CRU. AMD drivers are known to be a bit flakky in between versions so i would leave it out and maybe even try an older driver set.

Lastly if you want ToastyX help direct try him on his thread. He is a bit easier to hail on his own turf.

Hope this helps and after some testing feel free to post results and seek more help. thumb.gif
post #11250 of 25942
Quote:
Originally Posted by Spartan F8 View Post

I know a few things wink.gif

Honestly if you haven't changed anything from the last card to this one it is possible that the older card had better overclocking capabilities but i am very skeptical that is the case. I have seen it happen, my GTX770s in SLI overclocked better than my GTX780ti does.

The max pixel clock of the PCB of the Qnix is 450mhz. With that being said you should easily be able to do 72hz or 96hz with even stock timings. If your running fine at 60 but have issues past that then it sounds like implementation not capabilities.

I would start with some basics. Re-install drivers. Completely redo your CRU profiles. Try just LCD reduced before tinkering with the manual timings since LCD reduced for 96hz is well under the 450mhz ceiling. Also try different ports on your card as not all ports have the same overclockability(shown in my past posts). If your using the same cable it is probably OK but you never know, you could have kinked it or chipped the pins when swapping so the cable is a potential factor.

Also i would leave any voltage or timing effective driver level option default and stick with CRU. AMD drivers are known to be a bit flakky in between versions so i would leave it out and maybe even try an older driver set.

Lastly if you want ToastyX help direct try him on his thread. He is a bit easier to hail on his own turf.

Hope this helps and after some testing feel free to post results and seek more help. thumb.gif

things I've done so far:

1. reinstalled windows 8.1 and only installed drivers really
2. tried both dvi ports on the card.
3. tried lcd standard/monitor default/custom timings
4. tried w/ reduce dvi frequency
5. tried w/ reduce dvi frequency + alternate dvi mode
6. tried w/ alternate dvi mode
7. tried every single amd driver since the initial r290 release whql
8. with and without gpu scaling set

Where is Toasty's thread btw ? is it on OCN ?

Also did you see the pics I posted? this isn't normal pixel clock is too high blue lines or anything, this is total display corruption. Like crazy colors/brown block etc
Edited by HardwareDecoder - 12/17/13 at 4:11pm
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