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Radeon HD 7870 Triple Monitor Troubles

Tags:
  • HDMI
  • Graphics
  • three
  • AMD
  • 7870
  • triple
  • eyefinity
  • issue
  • Monitors
  • HD
  • Radeon
Last response: in Graphics & Displays
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April 9, 2014 6:05:23 PM

Hello! I am attempting to get a triple monitor setup working with a Radeon HD 7870.
The card has 4 ports; A DVI, HDMI, and 2 Mini DisplayPorts.

2 of my 3 monitors are Asus VX238H's, which have a VGA and 2 HDMI ports.

The third monitor is a Samsung PX2370, which has an HDMI and DVI port.

As it is now, I was trying to use 2 HDMI -> Mini DisplayPort cables for the Asus monitors, and an HDMI - > HDMI for the Samsung, which doesn't work, as it cannot enable the third monitor. The 3rd is detected, but all 3 cannot be enabled at the same time

(As a side note, I have tried several other configurations. I have an HDMI -> DVI cable, and I've been trying to rearrange things to get it to work, but it doesn't. From what I understand I may need other types of cables/adapters.)

My question is, is it possible to get all 3 monitors to work without buying any adapters, and if not, what adapters would I have to buy? Thank you!


Also, if anyone wants an pictures or further clarification, I'd be happy to oblige.

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April 9, 2014 6:39:34 PM

Yes it will work but one of the monitors must be on a DisplayPort>DisplayPort cable or a Active DisplayPort Adapter. If you cable is not a DisplayPort or Active DisplayPort Adapter the third monitor will NOT work.
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April 9, 2014 7:02:07 PM

bryonhowley said:
Yes it will work but one of the monitors must be on a DisplayPort>DisplayPort cable or a Active DisplayPort Adapter. If you cable is not a DisplayPort or Active DisplayPort Adapter the third monitor will NOT work.


Thanks so much for the quick reply!
So just some clarification;
Would something like this work? So this would be the next configuration:

Monitor -> PC
Asus (Right): HDMI -> mDP
Samsung (Center): HDMI -> DVI
Asus (Left): HDMI -> Adapter -> mDP

Using something like this HDMI -> mDP Adapter??

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April 10, 2014 12:58:27 PM

bryonhowley said:
Yes it will work but one of the monitors must be on a DisplayPort>DisplayPort cable or a Active DisplayPort Adapter. If you cable is not a DisplayPort or Active DisplayPort Adapter the third monitor will NOT work.


I went and tried it, and it worked! Thanks a bunch! I was nice to get a clear and accurate response so quickly!
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