Problem problem eyefinity 6400 x 1080

I have problems with eyefiniti 6400x 1080, I think it's good that, when running took a few minutes are left me no signal. I still hear the engine but lose signal monitors, and updated drivers and formatted.

my pc
i7 4790k 4 ghz
12 gihz ram
390x
ssd 240
win 7

thanks

 

Sorry, I'm confused as to what your saying. So while your driving the monitors will lose signal?

 

amount 3 monitors, central one ultrapanoramico 29 "and two sides of 24" widescreen, with a total resolution of 6400 x 1080, do not know if this is the problem but when took a while playing monitors lose the signal, happens to me race room and race 07 with no problems iRacing