I have a problem with my FirePro W7100 8Go and two monitors 5k (Dell UP2715K). It doesn't work together in 5K.
I have two cables ((DP1 & DP2) and (DP3 & DP4)) for each monitor and only one monitor is in 5K. The other is 3K and it runs no correctly.
My station is Dell Precision 5810 with 32 Go RAM and Windows 8.1.
The technical support Dell doesn't know if the W7100 supports my configuration with two monitors 5K and the documentation about W7100 says not clearly if it is OK.
Has anyone yet worked with two 2 monitor 5K ? Can you tell me more ?
For the moment, in 3K (3840 * 2160), my two monitors work fine. I have just one DP by monitor.
Thanks for your help.