Im building a new computer for christmas but i'm having an odd problem. If i turn the computer on with nothing but the motherboard, cpu, and ram installed it goes to POST, however if i plug in a SATA Hard drive into the power supply I cannot turn the computer on... the same thing happens when i plug in a graphics card. Any suggestions on how to fix this?
Intel i7 3.5 ghz (with Thermaltake water 3.0 extreme cooling_
Cooler Master Silent Pro M 1000W
EVGA GeForce GTX 780
Asrock z77 Extreme 6
Corsair 16 gigs ram (2x8 sticks)
Crucial M500 2.5inch solid state drive(240 gb)
Seagate Barracuda 7200rpm 1TB hard rive (from old computer)