3 screens how?

I am getting annoyed at my HD5870

I have a 6 meter hdmi -> dvi which I have used until now, but as I have 2 screens (both 24" 1920x1200) I had to unplug one of them to use my Plasma. Now I however got a HD5870 which supposedly supports 3 monitors, but I really cant get it to work.

Yesterday I bought a dvi to HDMI, but catalyst says "To enable this monitor you have to disable another" ok then I found a document that stated that I had to use the displayport, so today I bought a dvi to DP but again I get the same stupid message.

So how do I get it to work? I use catalyst 10.2 on Win7 x64

If you use a converter cable, the card treats the displayport as a dvi/hdmi port.

To get proper DP functionality (and eyefinity) you need either a active DP adapter, or a proper screen with a display port in.

Great I could have hoped they would have stated that clearly on the package or in any slides :( 40$ wasted on converters...

Using a passive dongle myself.
Check here: http://support.amd.com/us/eyefinity/...y-dongles.aspx

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Originally Posted by dreamdx

Using a passive dongle myself.
Check here: http://support.amd.com/us/eyefinity/...y-dongles.aspx

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I dont get how you make it work then when I quote this from the site:

Quote:

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• A maximum of 2 legacy monitors (VGA, DVI or HDMI) can be enabled simultaneously, provided that each monitor is connected either directly or via a “passive” DisplayPort™ adapter/dongle. “Passive” adapters/dongles will NOT support more than 2 legacy monitors.
• To enable support for more than 2 monitors, “active” DisplayPort™ adapters/dongles are required (or monitors with direct DisplayPort™ connectivity must be used).

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Quote:

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Originally Posted by Mech0z

I dont get how you make it work then when I quote this from the site:

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Ok granted, i could have provided a few more infos ;)
Im using a DP->VGA Adapter which works without problems.
But, i also read a few posts of passive DP->DVI apdaters working @ Single-Link.
Also, check the [H] thread: http://hardforum.com/showthread.php?t=1461673

this is lame. ati coulda simply added a third dvi connector but instead have made it awkward/expensive to do so :(

The HD5xxx series has a 2 RAMDAC limit. So more than 2 DVI/Analog wont be possible.
Hence the DP port.

Yes guess I have to replace one of my 24" screens (or both for better looks) but I just odnt have any money as I just bought this hd5870 and a i7 setup