Dell POWEREDGE 1855 - Manual (Page 47)

4. Slide the power supply module out of the chassis.
Figure 6-1. Removing and Installing a Power Supply Module
Installing a Power Supply Module
1. Ensure that the power-supply module handle is fully down and then slide the power supply module into the chassis until it is fully seated. See Figure 6 -
1 .
2. Rotate the power-supply module handle upward until its release tab snaps securely into place.
3. Plug a power cable into the power supply module.
Fan Modules
Your system contains up to four system fans (two sets of redundant fans) contained in two hot-pluggable fan modules. Each fan module has system fan
indicators on its back panel that identify the status of each of its system fans. See
Figure 2 -7 .
Removing a Fan
1. Identify the failed system fan using the back-panel fan module indicators. See Figure 2 -7 .
Fan 1 is the fan closest to the chassis midplane; Fan 2 is the fan closest to the fan-module handle.
2. Remove the fan module:
a. Press down on the fan-module release tab. See Figure 6 -2 .
b. Rotate the fan-module handle down to eject the fan module.
c. Slide the fan module out of the chassis.
Figure 6-2. Removing and Installing a Fan Module
NOTICE: Depending on the type of power supply that you are installing, the back panel of the 2100-W power supply fits flush against the back of the
chassis when it is proper seated, as shown in Figure 6 -1 . The back panel of the 1200-W power supply modules protrude approximately one-half inch
from the back of the chassis.
NOTICE: After a fan module is removed from the system, replace it immediately to ensure proper cooling.