You disassemble and reassemble a desktop computer. when you first turn it on, you see no lights and hear no sounds. nothing appears on the monitor screen. what is the most likely cause of the problem? explain your answer.
a. a memory module is not seated properly in a memory slot.
b. you forgot to plug up the monitor's external power cord.
c. a wire in the case is obstructing a fan.
d. power cords to the motherboard are not connected