Lenovo 3057 Maintenance Manual page 199

24. Note the orientation of the power supply cooling shroud and install it into the chassis by inserting the
two small tabs 1 on the bottom of the shroud into the corresponding holes
Figure 148. Installing the power supply cooling shroud
25. Install the system board battery on the new system board. See "Replacing the system board battery" on
page 176.
26. If you have a TMM Premium, install the TMM Premium on the new system board. See "Installing the
TMM Premium" on page 125.
27. If you have a TPM, install the TPM on the new system board. See "Installing the TPM" on page 128.
28. Install the two riser card assemblies on the new system board. See "Replacing the riser card assembly
1" on page 163 and "Replacing the riser card assembly 2" on page 165.
29. Note the orientation of the system fan cage. Align the left and right sides of the system fan cage with the
corresponding mounting posts in the chassis. Then, press the system fan cage with the installed system
fans straight down into the chassis until the system fan cage is correctly seated and the system fans are
correctly connected to the system fan connectors on the system board.
Figure 149. Installing the system fan cage with system fans
2
.
Chapter 6 Installing, removing, or replacing hardware
in the power supply cage.
185