I worked with HP, as my new PCs are HP, and the Firepro w7100 worked fine with a single monitor, but when I added Two I had issues. Long story short, if I used any of my Display port to DVI adapters, the display would go dark. PC could be remoted into so it worked. Updated to latest driver, tried different adapters, cables "all DVI" but nothing would work until I ran a straight Display port cable to a different monitor. So outside of purchasing new monitors are there any DVI capable cables/adapters for this card
Can you describe how many displays you are using and how each display is connected to each monitor?
The w7100 can support a maximum of two passive display connections (HDMI/DVI) and the third display and beyond must use a native DP-DP connection, or use a Active DP - DVI adapter.