Lenovo 102912U Installation And User Manual page 92

DANGER
Hazardous moving parts. Keep fingers and other body parts away.
To install a front fan, 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 23.
3. Remove the hard disk drives. See "Removing a hot-swap hard disk drive" on page 38 or "Removing a
non-hot-swap hard disk drive" on page 47.
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ThinkServer TD230 Installation and User Guide