Removal and replacement procedures  121  
 
 
System fan 
The server has four or eight system fans located on the center wall of the chassis. While the server is 
equipped with eight system fans, the redundant function is provided. 
The figure below identifies the system fans by their device number and shows their corresponding 
cable connections. 
Figure 106 Connection of the Four System Fans 
 
Device number  Connector 
System fan 1  J63 on the system board 
System fan 2  J71 on the system board 
System fan 3  J62 on the system board 
System fan 4  J68 on the system board 
System fans 1 to 3 are for the memory modules and processors, while system fan 4 is for the PCI slots and system 
chipsets.