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JCI1: Chassis Intrusion Connector
This connector connects to the chassis intrusion switch cable. If the computer case 
is opened, the chassis intrusion mechanism will be activated. The system will record 
this intrusion and a warning message will ash on screen. To clear the warning, you 
must enter the BIOS setup and clear the record.
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CPUFAN,SYSFAN1~2: Fan Power Connectors
The fan power connectors support system cooling fans with +12V. If the motherboard 
has a System Hardware Monitor chipset on-board, you must use a specially designed 
fan with a speed sensor to take advantage of the CPU fan control.  Remember to 
connect all system fans. Some system fans may not connect to the motherboard and 
will instead connect to the power supply directly. A system fan can be plugged into 
any available system fan connector.
1.Ground
2.+12V
3.Sense
4.Speed Contro
1.Ground
2.+12V
3.No Us
CPUFAN/ SYSFAN1 SYSFAN2
 Important
 
Please refer to your processors ocial website or consult your vendor to nd 
recommended CPU heatsink. 
 
These connectors support Smart Fan Control with liner mode. The Command 
Center utility can be installed to automatically control the fan speeds according to 
the CPU’s and system’s temperature. 
 
If there are not enough ports on the motherboard to connect all system fans, 
adapters are available to connect a fan directly to a power supply. 
 
Before rst boot up, ensure that there are no cables impeding any fan blades.