My Monitors are the Dell S2715H. I am running at 60 hz at 1920x1080. 40 FPS that fluctuates down to 30 FPS at msaa x8. Its completely smooth. I have v-sync turned off. What anti-aliasing setting do you have set? If I turn anti aliasing to msaa x4 on single monitor then it goes up into the 50 FPS.
Also, if I play single monitor, I am playing in windowed mode which shows the desktop on the other two monitors. I will try disconnecting the other two monitors and see if this makes a difference.
When I turned on smaa on a single monitor the frame rate shot up to 70 FPS. smaa on my triple monitors went down to a very playable 27 FPS. I turned on v-sync at 5760x1080 resolution (triple monitors) and its now at 30 to 38 FPS. smaa looks really good so I think I'll keep that setting.
I must be one of those people that can't see the difference between 30 FPS and 70 FPS...
Speaking of that single NOISEY case fan. A nosie that can drive one crazy if you're in a quiet room. Any suggestions on a high end replacement? I'm thinking with only a single fan, that needs to be replaced with a high air flow/low nosie fan.
My fan is very quiet. Are you sure it's clean? It tends to pick up some dust after a few months so it's always a good idea to clean it every few months. Unless there's a defect in yours but mine has been turning for the past 18 months and I clean it regularly and it's as quiet as the day I bought my XPS.
My case fan is noisy. I ordered a 92mm Noctua NF-B9 fan but it hasn't arrived yet.
I should receive the fan today or tomorrow and may get it installed this weekend and see if that helps quiet it down.