Gigabyte X399 AORUS Gaming 7 User Manual page 15

Step 6:
Push the carrier frame into place and you will hear
a "click" sound when it is pushed to the bottom.
Step 7:
After installing the CPU, use two fingers to push
down on the upper portion of the sides of the CPU
carrier frame to fasten the rail frame back to the
CPU socket.
Warning！The CPU carrier frame cannot
be placed outside the rails.
Step 8:
Close the metal load plate. With one finger
pressing down on the load plate, begin tightening
Screw 1 slightly. Then do the same to Screw 2
and Screw 3. Next, fully tighten the three screws.
Make sure the motherboard is placed on a stable
surface during the tightening process.
- 15 - Hardware Installation