Hello friends, so i have this lenovo z570 laptop and it has two GPU's (Nvidia and Intel). The motherboard broke and i bought a new one that only has Intel on it, now when i run the motherboard it works but doesn't send signal to the monitor. Shouldn't the Intel be able to do this by itself? if not can i hook up an external gpu to run it? or I must have Nvidia on the motherboard to run it?