I think the key for this is to mount same second card and then it should be possible a lot easier. I dont know any further settings I should change. Of course drivers was reinstalled and installed, cards were swithched between ports (both times first x16 port were working) and BIOS setting was set to first X16 bootable, second passive. Nvidia Nview and the other manager wasnt starting, and if started once per few tries i crashed down immediately. It was present in Devices Manager, but there were no output signal. Graphic driver went crazy and didnt started second card. I tried this with GeForce GTX750Ti, but computer did not allow for that. I want to extend the build to second graphic card. Computer have 4 or 5 hard drives (I forgot ). Tried with GeForce 750Ti as a second card. Monitors are two Z2440W and single LP2475W. HP Z800 dual Xeon, 1100W (1250W) power supply, 24GB RAM and Quadro FX3800. I want to ask how to configure that because I encountered some issues. None of the topics provided any solution in more complicated cases. I have read many topics that it is possible, and I seen such configuration myself. On the topic side, I have an unusual problem with usual thing - I want to build dual graphic cards configuration without SLI for three outputs.

I hope I will have an occasion to give the favor back. Because I couldnt find an answer to my question, I decided to join and ask for help. I am a quite long user of this forum, however unitl now I had no account here.

Z800 ram config