Removing The System Management Board And Backplane Assembly - Lenovo ThinkServer sd350 Installation And Service Manual

Figure 88. Power interface board bracket installation
Step 3. Tighten the power interface board bracket with 8 M3 screws.
Step 4. Reinstall the power interface board (see "Installing the power interface board" on page 139).
Step 5. Reinstall the cables (see "Internal cable routing and connectors" on page 144).
Step 6. Reinstall the fan cage (see "Replacing the fan cage" on page 105).
Step 7. Reinstall the system fan (see "Replacing a system fan" on page 89).
Step 8. Reinstall the fan cage cover (see "Installing the fan cage cover" on page 83).
Step 9. Reinstall compute node #3 and #4.
1. Install the server into the rack enclosure and push the server into the rack until it clicks into place.
2. Reconnect the power cords and any cables that you removed.
3. Turn on the peripheral devices and the server.

Removing the system management board and backplane assembly

Use this information to remove the system management board and backplane assembly from the server.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 75.
If you are replacing a server component or installing an optional device in the server, you need to slide the
server out from the rack enclosure, turn off the server and peripheral devices, and disconnect the power
cords and all external cables.
To remove the system management board and backplane assembly, complete the following steps.
Step 1. Remove the power supplies (see "Removing a hot-swap power supply" on page 98).
Step 2. Remove the fan cage cover (see "Removing the fan cage cover" on page 82).
Step 3. Remove the system management board cover (see "Removing the system management board
cover" on page 84).
Step 4. Disconnect all of the cables from the system management board.
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Lenovo ThinkServer sd350 Server Type 5493, Lenovo ThinkServer n400 Enclosure Type 5495Installation and Service Guide