Lenovo 70AL Maintenance Manual page 157

8. Remove the eight screws that secure the system board following the recommended numerical sequence
as shown. Then, carefully remove the system board out of the chassis.
Figure 97. Removing the screws that secure the system board
9. Place the old system board on a clean, flat, and static-protective surface. Touch the static-protective
package that contains the new system board to any unpainted surface on the outside of the server.
Then, remove the new system board from the package.
.
Chapter 6 Installing, removing, or replacing hardware
145