Monitor looses connection when gaming

[AdamScythe]

I have been having recurring issues with my monitor loosing connectivity when gaming I have tried changing out the cable and also screen and they seem not to be the issue, I am running a 980ti card and this issue only happens sometimes when gaming but not all the time? any advice (Also my graphics card runs at 65-70 on max load)

 

[ben001]

What power supply unit you're currently running ?.