138 views and no replies? Surely somebody must know what is happening

TLDR: My Creality Ender 3 x-axis motor is seized (it kind of shakes when trying to move x-axis, but x-axis (belt, hot end etc) doesn't actually move. Plugged in my x-axis motor to my y-axis cable (y-axis into mobo) and x-axis motor worked like a charm. Is this a bad motherboard, cables, or something else?