Connecting 3 monitors to AMD Radeon HD 7870

[hestemannen]

Can't connect 3 monitors to AMD Radeon HD 7870.

The monitors are:
BenQ GL2450 connected with DVI
Apple Cinema HD connected with DVI
Samsungs TV connected with HDMI

When all monitors are connected I can switch between everyone, but only two can be activated at the same time. Shouldnt this graphic card be able to run all three?

Thanks for any help.

 

[ShadyHamster]

One of the monitors needs to be connected via displayport, you will need an active DP to DVI adapter, something like this should work:
http://www.newegg.com/Product/Product.aspx?Item=N82E16812226060

 

[ThomasJ93]

One of the monitors needs to be connected via displayport, you will need an active DP to DVI adapter, something like this should work:
http://www.newegg.com/Product/Product.aspx?Item=N82E16812226060

That one is NOT going to work. He needs an active displayport to DVI adapter. They are more expensive, but it's the only way that it'll work.

 

[kdixon1997]

How are the display ports going to work when the Radeon 7870 only has Mini displayports?