third monitor not working on hd 7870 have active mini port display adator? help

wolfpac

Honorable
Jul 9, 2013
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10,510
hello i am have the same problem but one step more i have an activemin display adatore two of them and still have only two out of three monitors i can run two mini display /1xmini,dvi/1xmini,hdmi/1xdvi,hdmi/but 3 nope 2x mon max 1xmini 1x hdmi/1xmini 1x dvi/ 1xdvi 1xhdmi ok but when u do this 1xmini,1xdvi,1xhdmi u only get two out of three some time pc sees third simetime not when i start playing around a bit lol trying to get it (third monitor ) running. what can i do?? help i have a pc shop looking in to this to and there (schratching there heads) blank.???
 
Solution
the dvi and hdmi ports are shared with one of the mini display ports, you can only output to two at a time so you will need a second mini display port adapter.

so dvi or hdmi and 2 mini displayport for 3 monitors.
the dvi and hdmi ports are shared with one of the mini display ports, you can only output to two at a time so you will need a second mini display port adapter.

so dvi or hdmi and 2 mini displayport for 3 monitors.
 
Solution

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