Thanks thats all what i wantet to hear, cause im not going to buy an active adapter
 what means im going back to two Monitors. (Im also not using Eyefinity)

My Setup: 
GPU: 2x Club3D R9 280X
Cpu: Intel 4790K @4.6Ghz
Ram: 20Gb. (mixed and matched)
Psu: 850W Super Flower Leadex

Monitors:
2X Samsung S24C350
1X Acer X223w

(the stuff that i didn’t mentioned is less important anyway)