Lenovo ThinkServer RS140 - Manual (Page 116)

15. Install the eight screws following the recommended numerical sequence as shown to secure the new
system board on the chassis.
Figure 78. Installing the screws that secure the system board
16. Reinstall the two hexagonal screws 1 to secure the rear of the system board to the chassis.
Figure 79. Reinstalling the two hexagonal screws to secure the rear of the system board
17. Remove the protective cover that protects the pins on the microprocessor socket on the new system
board.
104 ThinkServer RS140 User Guide and Hardware Maintenance Manual