Screen Tearing on x16 worse on x4. How its possible?

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talesvalente

Prominent
Nov 14, 2017
2
0
510
I am just one more who suffers from the problem of Screen Tearing, but I suffer in a different way.

Thinking about lowering the tearing, I dropped my video card from the x16 slot to the x4 slot, and amazingly, things did worsen.

I would like to know why I am suffering more from this if in slot x4 the "final speed" of the gpu is decreased by almost half.

To idealize, Running on x16 my gpu has a clock of 7.0ghz and I have less screen tearing than running on x4 whose clock is 3.5ghz.

My Setup is

p8z77-V LX
4x8GB DDR3 1600Mhz
Intel Core i7-3770 V8 GTS
Gtx 980 4GB Founders Editition with latest drivers
Windows 10
2x SSD 120GB Kingstone a400 running on Raid 0
Corsair RM1000X
Monitor is a AOC FULL HD 1920x1080 VGA 60Hz


Detail 1:
I'm using an DVI->VGA Adapter to get the image from my GPU, it only has DVI and HDMI output.

I KNOW, I KNOW!

I know that the problem of GLOBAL TEARING is my Monitor 60hz... But i cant buy a new one at this momment, so... i need to fix or (maybe) understand why this happen...

Details 2:
For aesthetic questions and thinking of giving my board slack, i'm using her on x4 slots.

VSYNC is Active.

So, Summing UP, the tearing should not be smaller in x4 than x16 ? if not, Why?



 
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dontlistentome

Glorious
Sep 5, 2016
5,979
19
43,415
I would suspect your DVI to VGA adapter. Can you monitor your framerate while you play a game, and see what kind of framerate you're getting when you see screen tearing? My point is I don't think this is on the videocard or motherboard side of things, I think this issue is related to the monitor or how it is connected. I don't think the problem has anything to do with the pci-ex slot you use, so using a different one won't fix it.

This is why I don't like to use adapters or any other methods of connecting things that weren't designed to connect together. If there's a problem it just adds to the difficulty of troubleshooting the problem.
 
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BurgerandChips66

BurgerandChips66

Honorable
Jan 11, 2016
688
3
11,365
Right click on the desktop and select 'Display settings'.
Click 'Display adapter properties'
Click on the monitor tab.
Ensure that 'Screen refresh rate' is set to 60Hz.
Click 'Ok' to exit.

If you are still experiencing screen tearing in games with v-sync on, then it appears that either your 'DVI to VGA adapter' or the DVI cable itself is causing the problem.
I'd say it is more likely to be the adapter... but you never know. If you can borrow another working cable form a friend, that might help to determine which one is the culprit here.

The graphics card is not able to determine the correct display refresh rate and so cannot send a completed frame at the required rate to the display and so you have no sync.
 
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