Align and place the system board into the chassis.
Slide the system board to its position.
Replace the screws to secure the system board to the chassis.
Place the system fan fixed bracket and replace the single screw on the system board.
Connect the following cables:
audio cable
power cable
power control cable
24 Pin power cable
front I/O panel
SATA cables
ODD cables
USB 3.1 cables
Front system fan cable
Flex0 and Flex1 hard drive data cable
CAUTION:A loosely connected Power Cable (POWER_CBL) to the system board and the Power Control Cable (POWER_CTRL)
may result in a No POST scenario with Diagnostics LED blinking in pattern 1,2.