Help with amd 7870! Second graphics card won't display the screen

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Superslacker22

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Nov 21, 2013
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Hello,

I have two amd 7870 graphics cards I have an hdmi cable plugged into my first graphics card and it works fine but when I try to plug in my second display to the hdmi port on the second card it does not get recognized at all. Windows recognizes the card. Just not the monitor when I plug it in. The cable is fine I tried multiple cables all didn't work.
Any help would be much appreciated thank you!
Mike
 
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L
Also, just to make sure. Take out both cards and then install the 2nd card alone. Make sure it runs normally on its own.

Also make sure you have the watts needed and your Mobo supports CF set ups.
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Superslacker22

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Nov 21, 2013
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Yes I have ccc enabled and a cable but this particular card does not have a second hdmi port is there any way I could plug it into the second one?

 
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loops

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Adapter is an option to make it work all on the same card. I have had the best outcome having both displays on one card.

You may also want to run afterburner and do a fast bench to make sure both cards are working.

You should be able to have the 2nd card run the 2nd display. You could also pug in that display to the mobo outlet if your 2nd screen is more about info and not used for gaming. This only works on some set ups tho.


 
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loops

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Jan 6, 2012
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Also, just to make sure. Take out both cards and then install the 2nd card alone. Make sure it runs normally on its own.

Also make sure you have the watts needed and your Mobo supports CF set ups.
 
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Solution
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Superslacker22

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Nov 21, 2013
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Thank u so much for your help so far I downloaded the program and the second card does work I have a 1200 watt power supply so it should have enough power. I'm not a pro with computers so I'm not really comfortable taking the cards out but since it works in the benchmark shouldn't it work by itself. I might look into getting an adapter but it's going to bother me knowing that something is wrong with that hdmi port
 
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loops

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the short of it is ...running both monitors with the same card is your best bet for performance the adapters probably the cheapest and easiest thing to do t
To take one card out is rather simple... there are numerous videos on how to take out a card the key steps are to make sure you ground yourself unscrewthe video cards unplug them and make sure you press the lower tab that's part of the motherboard connection to free the card. testing each card individually is a good thing to do that way you can rule out a faulty card.

Try the adapter and track your GPU use. If the adapter works and both GPUs are working...in use...call it a day.
 
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