Sam has installed a new cpu in a client’s computer, but nothing happens when he pushes the power button on the case. the led on the motherboard is lit up, so he knows the system has power. what could the problem be? a) she forgot to disconnect the cpu fan
b) she forgot to apply thermal paste between the cpu and the heat-sink and fan assembly
c) she used an amd cpu in an intel motherboard
d) she used an intel cpu in an amd motherboard