Quote Originally Posted by Crayonbox View Post
....... just posted a huge post and i lost it. GFD reposting.


Simply cut down.
I'm using 2x ATI 6870s and 3x samsung 23" px2370s.
If you use an Nvidia card, you have to have a 2nd card to use 3+ displays.
If you use an ATI card, you have to have an ACTIVE display port adapter.
The ATI cards only pull enough power to power 2 of the hdmi or dvi ports. Attempting to use the third port will simply not work. Also, the active display port adapters come with a display port plug and a usb to draw additional power from the mother board. I suggest plugging that into any generic USB power adapter if you wish to have consistent power to your monitor without flickering.

Any further questions, let me know.
So I forgot about the active adapter, sorry. And just for lulz it's not a power issue that only allows use of either two dvi or one dvi/hdmi. I think it's a clock issue, I don't recall the details, but it's NOT A POWER ISSUE, if anything it's a limitation on DVI or some nonsense like that.

The OP has two monitors right now, he could add a third. To not need an active adapter he could just get a monitor with displayport on it. I think ATI has worked towards having less expensive validated displayport adapters.

OH LOOK, A LIST (from ati, yay!)

http://support.amd.com/us/eyefinity/...y-dongles.aspx

One of them ( a single link ) is only 30 dollars!
http://www.amazon.com/Accell-B087B-0...3847521&sr=1-1

I wish I could have read your huge post.

Quote Originally Posted by Harrypott View Post
Running an ATI 5800 Series (5870 maybe?) with
24" Dell on DVI
23" Dell on DVI
23" Dell on display port (monitor has a display port)

It works perfectly but have to unplug the display port screen when I turn on the computer or the ATI card's fan goes nuts and doesn't get a display on any of them. I didn't get any usb cable thingo to get extra power with my card. Been running with three screens off it for some time now.
Sounds like an issue with your card, I have no fan issues.