Lenovo x3300 M4 7382 Installation And Service Manual page 291

2. Turn off the server (see "Turning off the server" on page 24) and all attached peripheral devices.
Disconnect all power cords; then, disconnect all external cables from the server.
3. Carefully turn the server on its side so that it is lying flat, with the cover facing up.
Attention: Do not allow the server to fall over.
4. Unlock and remove the left-side cover (see "Removing the left-side cover" on page 193).
5. Remove the air baffle (see "Removing the air baffle" on page 195).
6. Remove the fan assembly (see "Removing the fan assembly" on page 267).
7. Note where the cables are connected to the microprocessor 2 expansion board; then, disconnect them.
Attention: Disengage all latches, release tabs or locks on cable connectors when you disconnect all
cables from the system board (see "Internal Cable Routing and Connectors" on page 172 for more
information). Failing to release them before removing the cables will damage the cable sockets on the
microprocessor 2 expansion board. The cable sockets on the microprocessor 2 expansion board are
fragile. Any damage to the cable sockets may require replacing the microprocessor 2 expansion board.
8. Remove any of the following components that are installed on the microprocessor 2 expansion board
and put them in a safe, static-protective place:
a. Adapters (see "Removing an adapter" on page 217)
b. DIMMs (see "Removing a memory module" on page 259)
c. Microprocessors and heat sinks (see "Removing a microprocessor and heat sink" on page 272)
Attention: Remove the socket cover from the microprocessor socket on the new microprocessor 2
expansion board and place it on the microprocessor socket of the microprocessor 2 expansion
board you are removing.
9. Make sure the microprocessor 2 expansion board release levers are in the open position.
10. Grasp the release lever and the handle and carefully lift the microprocessor 2 expansion board out of the
server.
.
Chapter 6 Removing and replacing components
279