I have calibrated the NEC using the SpectraView II with NEC Custom Xrite, in Photo Editing mode, with default settings of D65, Gamma 2.2, Intensity 140. The ACD monitor is calibrated using my old Monoco EZ Color software and Optix XR colorimeter, at 5000, Gamma 2.2.
The ACD is calibrated to 5000K, the new NEC to D65. The NEC is cooler ... and you're wondering why???