Lenovo ThinkServer RD240 Installation And User Manual page 79

3. Always install the microprocessor first into the CPU0 socket, and then install
another microprocessor into the CPU1 socket if you want to install two
microprocessors.
To install the microprocessor, do the following:
1. Remove all media from the drives and turn off all attached devices and the
server. Then, disconnect all power cords from electrical outlets and disconnect
all cables that are connected to the server.
2. Remove the server cover. See "Removing the server cover" on page 21.
3. Remove the microprocessor fan duct. See "Removing the microprocessor fan
duct" on page 51.
4. Remove the heat sink. See "Removing the heat sink" on page 60.
5. Press down and push the small handle outward on the microprocessor socket
to lift the handle to the open position.
Figure 47. Lifting the handle
6. Gently press the retainer of the microprocessor socket to open it.
Figure 48. Opening the retainer
7. Remove the protective cover from the microprocessor socket. To avoid
damaging the pins in the microprocessor socket, do not touch the pins while
removing the cover.
Chapter 5. Installing, removing, or replacing hardware
65