... and hold it with your right hand. Look on your motherboard for the CPU socket. With your left hand hold the motherboard with a firm grip while you insert your CPU. Then connect your CPU fan. ... screw these brackets into your case. 8. Installing your floppy drive. Next, take your floppy drive, insert it into an available bay (in the upper right hand corner of your case). Connect a power ... towards the left part of your board. Finally, connect the power supply to the drives. 10. Inserting your expansion cards. Next you will want to insert your expansion cards into your motherboard....