I cant find anywhere on the box, or website that says specifically that this card supports dual-link, just 2 DVI-I connectors.
I have a new 30in dell monitor connected to it and the max is 1280x1024, although new drivers are installed for both the video card and monitor. The vid drivers show that 2560 x 1600 is supported by this monitor.
Please refocus you attention on the Dell 3007 Monitor. To this point everyone is focusing their attention on video cards. Which I am finding out is the wrong approach. The Dell 30” has two separate EDIDs built into the unit. One will recognize video cards capable of supporting resolutins of 2560 x 1600. The other side of the monitor will recognize DVI (dual link) cards below the native resolution of the monitor. If your card will not transmit the 25 x 16, the monitor default to the second EDID which will only support a max resolution of 1280 x 800…period.
I am running a Dell XPS 1710 and Nvidia Go 7900 GS. The card will support a max resolution of 1920 x 1200 external DVI but this is not enough to activate the EDID side of the monitor that supports more than 1280 x 800.
If Dell would allow the monitor to recognize the DVI output of the Nvidia 7900Gs which is maxed out @ 1920 x 1200 in DVI… then we could at least enjoy a greater resolution than the default 1280 x 800.