hi, i have a 850w thermaltake power supply on my pc, about three years old, i have one ssd and three regular sata hard drives, two 1tb and one 3 tb. i notice yesterday that my pc would not boot up, once i remove the three sata hard drives the system starts fine, is it possible that my power supply is not giving enough power? or is it the motherboard? i removed the hard drives and test them and they all work fine. thank you.