I have an e-machine T2984 computer that recently stopped powering on. The monitor powers on fine but the tower itself does not power on. I checked the AC outlet and the power cord supplying the unit. Both of them are working fine. I also opened the computer with the power connected to the AC outlet and noticed a little green light that stays on, on the motherboard. I am not sure but I think that the light is located next to the processing chip (there is a big heat sink and fan next to the light). There is also a soft humming sound coming from the power supply area when the power plug is plugged into the AC outlet the computer will not turn however.
Can I get some advice on what to do to resolve the failure? I would like to fix this computer if it’s possible rather that get a new one.
Thanks for the help in advance.