Lenovo THINKSERVER 3797 - Manual (Page 205)

4. Lift the fan out of the server, holding the vertical tabs 1 .
5. Replace the fan within 30 seconds (see “Installing a hot-swap fan”).
If you have other optional devices to install or remove, do so now. Otherwise, go to
“Completing the installation” on page 227.
Installing a hot-swap fan
The server comes with three replaceable double-fans. For proper cooling, the
server requires that all three fans be installed at all times.
Attention: To ensure proper server operation, if a fan fails, replace it immediately.
Have a replacement fan ready to install as soon as you remove the failed fan.
The fans use system-board fan connectors 2, 4, and 6 only. Table 12 lists the fan
connector on the system board for each double-fan. See “System-board internal
connectors” on page 150 for the locations of the fan connectors.
Table 12. Fan connectors on the system board
Fan number System board fan connector
1 2
2 4
3 6
To install any of the three replaceable fans, complete the following steps:
1. Read the safety information that begins on page 3.
2. If you have not done so already, slide the server out of the rack and remove the
cover (see “Removing the cover” on page 159).
Attention: To ensure proper system cooling, do not remove the top cover for
more than two minutes during this procedure.
3. Orient the new fan over its position in the fan bracket 1 so that the connector
on the bottom aligns with the fan connector on the system board.
Chapter 6. Removing and installing FRUs 197