Blur Busters Forums

Does anyone know why with this monitor I never have a fixed fps, no matter how much I lock the fps it always jumps even though I have way more fps than it is locked to, for example in cod2 I have 1000, but if I lock it to 250 or 333 or 500 it never stays fixed but jumps. I use it at 280 hz and od120 ...

Does anyone use the 240Hz 10 bit mode? Is it worth using or is the 280Hz OD120 8 bit better?