Lenovo ThinkServer TD200 - Manual (Page 138)

c. Secure the battery carrier to the ServeRAID adapter with the screws that
came with the battery pack.
10. Turn the ServeRAID-MR10is adapter so that the ServeRAID-MR10is adapter
keys align correctly with the connector on the system board.
Attention: Incomplete insertion might cause damage to the system board or
the ServeRAID-MR10is adapter.
1 ServeRAID-MR10is connector
2 PCI slot 1
11. Press the ServeRAID-MR10is adapter firmly into the connector on the system
board.
12. Rotate the power-supply cage assembly out of the chassis. Lift up the
power-supply cage handle and pull the power-supply cage assembly all the
way up until the retainer latch locks the cage in place on the chassis.
120 ThinkServer TD200 Types 3724, 3808, 3809, 3815, 3817, 3824, 3826, 3836: Installation and User Guide