I don’t think it’s that I had crg90 previously before the neo. Even tried turning it just just before starting the pc. I’ll try reflashing the mother bios when I get back as well. It’s deffo a weird one. It’s like windows is outputting an unsupported resolution for my monitor. Might go back to windows 10 and see if that works instead. Appreciate your input mate.
Just some more info on the sleep mode issue, if your monitors blue led light is a solid blue when off, it means the eco deep sleep mode is on and that causes the issue, if you turned off all the correct eco mode settings the monitor while off for a long time will have the blue led flashing as it is just in the off state and not activated the deep sleep mode.
So do check if your monitor led is doing what I said above too, as that has tripped up many people with DP connections to these monitors and getting VGA errors from the motherboards.