DELL 1955 User Guide

Installing System Options

59

Figure 3-1.

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 

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 1-7.

2

1

3

1

handle

2

release tab

3

power supply module