Lenovo ThinkServer RD440 - Manual (Page 200)

To replace a system fan, do the following:
1. Remove the server cover. See “Removing the server cover” on page 87.
Note: The system fans are hot-swap and you can replace a failing system fan without turning off
the server.
2. Do the following to locate the failing system fan:
• If your server comes with an Intelligent Diagnostics Module Premium, you can view the system fan
error LEDs on the panel of the module to locate the failing system fan. See “Intelligent Diagnostics
Module Premium” on page 26.
• If your server does not come with an Intelligent Diagnostics Module Premium, you can view the
system fan error LEDs on the system board to locate the failing system fan. See “System board
LEDs” on page 59.
3. Grasp the top of the system fan with your index finger and thumb and then lift the system fan out of
the server.
ID
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PSU
Mem
CPU
Figure 152. Removing the system fan
4. Touch the static-protective package that contains the new system fan to any unpainted surface on the
outside of the server. Then, remove the new system fan from the package.
188 ThinkServer RD440 User Guide and Hardware Maintenance Manual