Lenovo ThinkServer RD330 Hardware Maintenance Manual page 163

13. Remove the heat sinks and place them on a clean, flat, and static-protective surface. See "Installing or
replacing a heat sink" on page 110.
14. Disconnect all cables from the system board. Then, remove the ten screws that secure the system
board following the recommended numerical sequence as shown.
Figure 100. Removing the screws that secure the system board
.
Chapter 6 Installing, removing, or replacing hardware
149