Hello, just a quick question. I ordered the EX-58-UD4P and Corsair 850TX. It is my understanding that I will want to use BOTH the 8-pin ATX12V AND the 24-pin ATX connection. the ATX12V powers the CPU and the ATX powers the other peripherals and components of the system? I'll admit this is my first build, so please endure my amateurish question. Thanks for your time!