The Motherboard
The motherboard will be going in next, but dont screw the motherboard into the case without putting the cpu and the fan on, it will make it alot harder to put the cpu and fan in later if you dont do it first.
The CPU will need to go in first. It goes in the little white spot on the mother board. When putting the CPU in make sure the little arrow on the Cpu and the little arrow on the motherboard match up then lift up the silver bar and click the Cpu in and push down on the silver bar.
Now that the Cpu and the fan are on you need to screw the motherboard into the case. Line the motherboard up with the screws and make sure you put in it right side up and everything then after that screw in the motherboards till its secure and isnt going to go anywhere.
Once you are done it should look like this