Dell PowerEdge C5125 - Manual (Page 73)

Installing System Components 73
4 Disconnect all system and PSU fan cables from the backplane and remove
the system fan cables from the cable clips. See Figure 3-22.
Figure 3-22. Disconnecting and Connecting the Fan Cables
9 Remove the fan cage completely from the system.
1 fan and connector 1 2 fan and connector 2
3 fan and connector 3 4 fan and connector 4
5 fan and connector 5 6 fan and connector 6
7 fan and connector 7 8 fan and connector 8
1 4 2 5 3 6 7 8