The power supply already came installed into the case. I have wires that says: PLED (+) PLED (-) RESET BLUE AND WHITE CABLE, and about 4 other cables that come from the case it's self (power button) also when I push the power button in the computer will not shut off. I have to flip the little switch in the back to turn it off. However, now I cannot even get any screen to come up. Maybe if I took pictures of the wires maybe it would help. Thanks gor the replies guys. PS; I will have to double check on the processor since I didn't use any thermal paste. Also, from the back of the cdrom drive it has a SATA connection but on the motherboard there is a place for like for of them. I have the main hdd in the first one and the optical drive in sata 2