Installing The System Board - Lenovo System x3550 M3 Problem Determination And Service Manual

Attention: Disengage all latches, release tabs or locks on cable connectors when you disconnect
all cables from the system board. Failing to release them before removing the cables will damage
the cable sockets on the system board. The cable sockets on the system board are fragile. Any
damage to the cable sockets may require replacing the system board.
Step 13. Remove the hot-swap fans (see
Step 14. Press the fan brackets release latches (one is to the left of fan 6 and one is to the right of fan 1)
inward toward the fans and rotate the fan assembly brackets up toward the front of the server.
Step 15. Grasp the system board handle and lift up the right side of the system board slightly so that it
disengages from the locator pin; then, slide the system board slightly toward the left of the server.
Figure 133. System board removal
Step 16. Lift up the system board and carefully remove it from the server, being careful neither to damage
any surrounding components nor to bend the pins inside the microprocessor sockets.
Step 17. Remove the socket dust covers from the microprocessor sockets on the new system board and
place them on the microprocessor sockets of the old system board that you are removing.
Attention: Make sure to place the socket covers for the microprocessor sockets on the system
board before you return the old system board.
If you are instructed to return the system board, follow all packaging instructions, and use any packaging
materials for shipping that are supplied to you.

Installing the system board

Use this information to install the system board.
Notes:
System x3550 M3Problem Determination and Service Guide
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"Removing a hot-swap fan assembly" on page 460).