Blurry display after upgrading to Ultrawide

I'm using Windows 10 with two nVidia GTX 480s and a dual-link DVI cable.  I just upgraded to a 34-inch Ultrawide monitor running at 3440 x 1400 resolution, however, everything on screen is blurred.  The Windows fonts, web pages, login screen, everything.  I tried adjusting the DPI to 200% and that did help somewhat, but I'd prefer not to have to do this.  Also, I can't see the boot screen let alone the BIOS menu.  That's blacked out or I get a blue haze.  All I do see is the Windows boot logo for a split second and then it goes into the log in screen.

Can you recommend a fix?

Thanks!

Thanks!
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epichero22Asked:
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McKnifeConnect With a Mentor Commented:
No. Will still not be optimal. Only the native resolution of the screen is optimal. New card.
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
Have you update to the latest graphics drivers ?
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Cliff GaliherCommented:
Is this a new monitor?  I don't see many (any actually) DVI monitors anymore.
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Zaheer IqbalTechnical Assurance & ImplementationCommented:
Also are you connecting using HDMI or VGA ?
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epichero22Author Commented:
Let me answer quick off my cell:

I believe I do have the latest drivers but I will double-check.

The monitor is new as I bought it last week.  It's a model off of eBay from Korea.  Another user posted a pic without any blur.  So I'm going to assume that it is capable of what I want.

I am not using VGA, it's a dual link DVI
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
Did you check the effective resolution? Maybe it is reduced because of the dual link DVI, and the monitor has to scale that lower resolution.
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epichero22Author Commented:
Where do I go to check the effective resolution?
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McKnifeCommented:
Wikipedia says: "To support higher-resolution display devices, the DVI specification contains a provision for dual link. Dual-link DVI doubles the number of TMDS pairs, effectively doubling the video bandwidth. As a result, higher resolutions up to 2560 × 1600 are supported at 60 Hz."
I am not 100% sure about the 60 Hz vs lower Hz numbers, but I think you need to go away from DVI dual link and rather use display port or HDMI for resolutions above 2560x1600
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
To check the effective resolution, you need to go into Display Settings, e.g. using the context menu on the desktop and the (IIRC) third option from bottom.

Above is what I recall too - 2560 works, but everything beyond needs two cables or display port / HDMI.
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epichero22Author Commented:
My card has mini HDMI...will that be OK?
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epichero22Author Commented:
I tried setting my resolution to 1920 x 1080 and it works fine.  I'm thinking I need to upgrade my video card.  Bummer.
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McKnifeCommented:
Try mini HDMI before you do that.
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McKnifeCommented:
Scratch that... a look at https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-480/specifications tells us, the card is not good enough and 2560x1600 is all it can do.
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epichero22Author Commented:
I'll try mini HDMI if it could get me res to 2560 x 1440.  That should be within the scope of the card.  Would it make a difference?
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epichero22Author Commented:
OK.  I'm going to try getting a GTX 970 on eBay.  Will that do it?
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McKnifeCommented:
Please confirm by reading its specs. Google it quickly.
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epichero22Author Commented:
Oh yeah it can support way higher resolutions than what I'm trying to get.  But it is an older card so don't know if you would recommend that one or something better.  Maybe there's better value in a different card.
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McKnifeCommented:
That's a different type of question now. I don't know what you plan to do with that card. I would always go for cards that are fanless, but you might be a gamer, and gamer cards are rarely fanless.
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epichero22Author Commented:
I tried it with a GTX 1050 ti and it works great.  Thank you.
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