Will the 5CEFA4U19 chip work without some power pins connected as suggested by the Quartus migration feature.

Thank you. I was aware of the pin connection guidelines you quote. However, the issue really is, the Quartus vertical migration feature says to leave unconnected all the noted pins (and a few others), including the relevant power pins in the A4 device. This is in direct conflict with this section of the guidelines. I guess my more accurate question is, will it harm the A5-A9 chip to connect power to pins marked as NC in order to power the A4 chip, which I am certain will not work correctly without connecting all its power pins. As I see it there are only three possibilities: 1) connect power to the pins marked NC in the larger chips but are power pins in the A4 device, following the guidelines; 2) do not connect these pins according to the Quartus vertical migration results (then the A4 device will not work but the others will); 3) vertical migration capability of the Cyclone VE U19 package does not really cover A2 through A9 as stated in the device overview and elsewhere.

Of course I prefer possibility 1 to be correct allowing full migration between A4-A9, but I don't want to risk the substantial cost of assuming this to be true and finding out later it is not.