I don't think it burned out as it kept printing in the beginning and stopping after a few millimeters of print. and I took the stepper driver out of its socket when reattaching the heatsink as I needed to reapply heatsink adhesive.

is there a way to pull the firmware from the mainboard to put in a new one? I've reinstalled my windows since I made the changes and compiled the firmware, I can of course redo it all, but copying from this mainboard onto new one would save so much time.