Dell PowerEdge 4300 Installation And Troubleshooting Manual page 107

system-board
cooling fans (2)
5. Remove the four push pins that fasten the finger guard to the old fan and attach
the guard to the new fan. Make sure that the guard is placed on the correct side
of the fan relative to the direction of the airflow.
6. Insert the replacement cooling fan into the carrier, and snap the two fan retention
tabs back into position.
7 . Connect the cooling-fan power cable to the extension cable attached to the
system board.
The cooling fan should begin operating.
8. Replace the computer cover.
Follow these steps to replace the three-fan assembly for the hard-disk drives.
NOTE: You can perform the following procedure with the system turned on or off.
1. Remove the computer cover.
See "Removing the Computer Cover" found earlier in this chapter.
2. Lift up on the release latch on the back of the three-fan assembly and slide the
assembly out of the system (see Figure 7-11).
fan retention
tabs (2 per fan)
Checking Inside the Computer 7-19