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Old 2 Weeks Ago   #1 (permalink)
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Default Two GTX 295 cards, only two monitors will work

I have two GTX 295 video cards in my PC, but can only get two monitors to work (I have three).

All monitors are DVI, and I am not running any SLI.

I can plug one monitor into each video card, and both will display no problems.

If I plug more than one video card into a video card, only one will work.

So basically I have four monitor outputs, but a maximum of two video cards will display.

Any ideas what I must enable to make more than two video cards to work? Since I am not using SLI, I thought I would be able to use up to 4 monitors.
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Old 2 Weeks Ago   #2 (permalink)
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Try uninstalling the GTX 295s in your device manager. Your OS should scan the cards for displays again apon rebooting.

Yes, you should be able to use all your monitors.


have you tried reinstall the nvidia drivers yet?
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Old 2 Weeks Ago   #3 (permalink)
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Yes, tried that.

I've actually reinstalled the OS, both Windows XP and Windows 7.

I suspect that you can only run 1, 2 or 4 video cards can be operated and not three. I'm going to try and get another monitor for testing and see what happens when 4 monitors are connected.
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Old 2 Weeks Ago   #4 (permalink)
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Don't bother getting another monitor...just make a dummy plug like you can find in the folding forums here.

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Old 2 Weeks Ago   #5 (permalink)
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I borrowed a 4th monitor and hooked it up...

Guess what happened...

Three monitors came up...

No matter what I tried, I could not get all four online...

I think the problem is actually the output on one of the cards, nothing comes on regardless of what is plugged in. I'm OK with it for now, I only have three monitors and now are all working as long as it is not plugged into that one output.
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Old 2 Weeks Ago   #6 (permalink)
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Quote:
Originally Posted by gunsuka View Post
I borrowed a 4th monitor and hooked it up...

Guess what happened...

Three monitors came up...

No matter what I tried, I could not get all four online...

I think the problem is actually the output on one of the cards, nothing comes on regardless of what is plugged in. I'm OK with it for now, I only have three monitors and now are all working as long as it is not plugged into that one output.
I would RMA the card with only one working display port.
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Old 2 Weeks Ago   #7 (permalink)
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Quote:
Originally Posted by PizzaMan View Post
I would RMA the card with only one working display port.
If I understand the situation, you should definitely RMA^

What if you get another monitor in 3 months? By then your return period may be expired.
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Old 2 Weeks Ago   #8 (permalink)
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Did you try only plugging into the seemingly dead port?
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