Lenovo ThinkStation P900, Hardware Maintenance Manual, Page: 187 / 218

17. To install the new system board, position the new system board in the chassis so that the twelve
mounting studs on the bottom of the system board align with the corresponding holes in the chassis.
Then, push the new system board toward the rear of the computer until it snaps into position. Ensure
that the system board is secured by the metal retainer.
Figure 101. Installing the system board
18. Reinstall all parts that you have removed one by one in the reversed sequence as you remove them.
Refer to the information that you have recorded and the related topics in Chapter 11 “Installing or
replacing hardware” on page 111. Connect all cables to the new system board. See “Locating parts on
the system board” on page 34.
19. Connect the external cables and the power cord to the computer.
The failing system board must be returned with a microprocessor socket cover to protect the pins during
shipping and handling. Install the microprocessor socket covers removed from the new system board
on the failing system board.
Note: Ensure that each microprocessor socket on the failing system board is installed with a microprocessor
socket cover.
To install the microprocessor socket cover, do the following:
Note: Your microprocessor socket and cover might look slightly different from the illustration.
Chapter 11
.
Installing or replacing hardware
179