Can a cable cause graphics to display in low-res?

riven65

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Aug 26, 2009
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First of all, I apologize if I am not supposed to ask a question about a post that I made earlier (and is now buried on page 5... couldn't bump it up).

I apologize... but I have a really strange question to ask. In fact, I am not sure if I believe the results, so I better ask you guys...

PROBLEM:
I bought an MSI GTX 960 2G GAMING card. It replaced an older GTX 285.

I should state that I have an older ASUS P6T Deluxe V2 MOBO, which is only PCIe 2.0 compatible... so I am not sure if this plays a role in my drama...

Ok, I installed the card and it failed to install on initial boot up. It said it was using a Standard VGA card.

I updated GeForce Experience and updated the drivers through that. It then said I was using a 960 at optimal settings (native 1080p 1080X1920, True Color 32-bit and 60 Hz).

The problem is... it looked like I was using a card from the 1990s. Very low-res. Text was not anti-aliasing smoothly, to the point that it was barely readable. Light colors were washed out and darker colors were almost cartoon-like in their vividness. The images were pixilated, like they couldn't handle the color depth.

I tried many things and the only suggestion I got was to RMA the card.

STRANGE SOLUTION(?):
On a hunch, I decided to change cables. My old card was using a DVI cable. It had no port for an HDMI. I had an old 3m HDMI cable that had never been used, so I figured I would use that for my new 960.

I figured that HDMI was a newer format, so newer is better, right?

You can probably guess what I am gonna say next. After exhausting my ideas, simply changing the cable back to the old DVI should not have worked, right? But it did. I am now getting GREAT images. I haven't checked it against many calibration images, but it seems pretty good. The problems are gone.

IS THIS REALLY WHAT WAS WRONG? I didn't know that a cable could result in graphical loss... this doesn't make sense to me, but I will admit to having a novice-level of understanding on how GPUs work.

CAN A CABLE REALLY BORK MY GRAPHICS LIKE THAT?

Also... does anyone have another way for me to test my graphics to make sure it is working properly? I only have 5 days left on my RMA insurance (I paid $15 for it). Is there a way to test the card to make sure it is really working as intended?

Finally, my version of GPU-Z says that the fans on my card have not yet been used...??? It says that the GPU is not registering movement of the fans, but the max temp I had in my last gaming session was only 51C, so... do the fans only kick in at higher temps? Or is the probe software not working properly?
 
Solution
Not really. Bad cables usually don't give a "low-res" look. They'll have distorted colors and lines across the screen. The only way to be sure is to try another HDMI cord.

Another option is to start your drivers from scratch. Remove your card, then use onboard video to uninstall every Nvidia driver you have. Then, plug in your video card and let Windows re-install. It's rare, but even drivers both made from Nvidia can cause conflict.

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

If that or swapping out the cable doesn't work, then RMA the card.
Test your card using something like Furmark. Let it run for a good amount of time (hour or two), and see what happens.

Did you uninstall your previous drivers? It's a small chance, but there may be some kind of conflict there. Have you tried a different HDMI cable? It's actually surprising how many HDMI cables are bad out of the box.
 

No, I didn't think about uninstalling them.... hmm... can that still be done? I am guessing, no... new GeForce drivers should overwrite the old ones, right?

The biggest question is: would a bad cable have the effect described? It was like having a low-res GPU in my box. It was so strange to see it change in that way... but maybe I just don't understand.
 
Not really. Bad cables usually don't give a "low-res" look. They'll have distorted colors and lines across the screen. The only way to be sure is to try another HDMI cord.

Another option is to start your drivers from scratch. Remove your card, then use onboard video to uninstall every Nvidia driver you have. Then, plug in your video card and let Windows re-install. It's rare, but even drivers both made from Nvidia can cause conflict.

http://www.guru3d.com/files-details/display-driver-uninstaller-download.html

If that or swapping out the cable doesn't work, then RMA the card.
 
Solution

Awesome! Thanks!


 
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