Lenovo 1046 - Manual (Page 67)

7. If you are instructed to return the system fans, follow all packaging instructions and use any packaging
materials that are supplied to you for shipping.
8. To install new system fans, see Installing the system fans.
Installing the system fans
Attention: Do not open your server or attempt any repair before reading and understanding the “Safety information”
on page iii and “Guidelines” on page 17.
This section provides instructions on how to install the system fans.
CAUTION:
Hazardous moving parts are nearby.
To install the system fans, 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.
3. Remove the microprocessor fan duct. See Removing the microprocessor fan duct.
4. Remove the riser card assembly. See “Removing the riser card assembly” on page 34.
5. For each system fan, slide it into the chassis from the top until it snaps into position.
Chapter 5 . Installing, removing, or replacing hardware 57