Lenovo ThinkStation P300 Hardware Maintenance Manual page 182

Installing or replacing the fan of the 5.25-inch cage assembly
To install or replace the fan on the 5.25-inch cage assembly, do the following:
1. Slide the 5.25-inch cage assembly out of the front of the computer. See "Installing or replacing a device
in the optical drive bay" on page 162.
2. If you are replacing an old cage assembly fan, pivot the four retaining clips on the cage assembly fan
bracket as shown to disengage the fan from the 5.25-inch cage assembly.
Figure 162. Removing the fan from the 5.25-inch cage assembly
3. To install a new cage assembly fan, align the four holes in the new fan with the corresponding tabs on
the fan bracket until the new fan is secured in place.
Figure 163. Installing the fan in the cage assembly
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 223.
Installing or replacing a slim optical drive conversion board in the 5.25-inch cage assembly
To install or replace a slim optical drive conversion board in the 5.25-inch cage assembly, do the following:
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ThinkStation P300 Hardware Maintenance Manual