Lenovo ThinkServer TD230 Hardware Maintenance Manual page 121

This section provides instructions on how to remove the system board.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the server and wait three to five
minutes to let the server cool before removing the server cover.
To remove the system board, 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 43.
3. Remove all the memory modules. See "Removing a memory module" on page 51.
4. Remove the two rear fans. See "Removing the rear fan" on page 106.
5. Remove the PCI cards (if necessary). See "Removing a PCI card" on page 74.
6. Remove the heat sink and fan assembly. See "Removing the heat sink and fan assembly" on page 96.
7. Remove the microprocessor underneath the heat sink and fan assembly. See "Removing the
microprocessor" on page 110.
8. Remove the system board battery. See "Replacing the system board battery" on page 113.
9. Note the location of all cable connections on the system board and disconnect all cables. See "Locating
parts on the system board" on page 33.
10. Remove the eight screws that secure the system board to the chassis.
Figure 80. Removing the eight screws that secure the system board
11. Carefully lift the system board out of the chassis.
12. Remove the microprocessor socket cover from the new system board.
13. Remove the microprocessor from the failing system board and install it on the new system board.
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Chapter 5 Replacing FRUs
115